//              Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
//   (See accompanying file LICENSE_1_0.txt or copy at
//        https://www.boost.org/LICENSE_1_0.txt)

// SPDX-License-Identifier: BSL-1.0

//  Catch v3.1.0
//  Generated: 2022-07-17 20:14:05.885021
//  ----------------------------------------------------------
//  This file is an amalgamation of multiple different files.
//  You probably shouldn't edit it directly.
//  ----------------------------------------------------------

#include "catch_amalgamated.hpp"


namespace Catch {
    namespace Benchmark {
        namespace Detail {
            ChronometerConcept::~ChronometerConcept() = default;
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch




namespace Catch {
    namespace Benchmark {
        namespace Detail {
            BenchmarkFunction::callable::~callable() = default;
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch



#include <exception>

namespace Catch {
    namespace Benchmark {
        namespace Detail {
            struct optimized_away_error : std::exception {
                const char *what() const noexcept override;
            };

            const char *optimized_away_error::what() const noexcept {
                return "could not measure benchmark, maybe it was optimized away";
            }

            void throw_optimized_away_error() {
                Catch::throw_exception(optimized_away_error{});
            }

        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch


// Adapted from donated nonius code.



#include <cassert>
#include <cstddef>
#include <iterator>
#include <random>


#if defined(CATCH_CONFIG_USE_ASYNC)
#include <future>
#endif

namespace {

    using Catch::Benchmark::Detail::sample;

    template<typename URng, typename Estimator>
    sample
    resample(URng &rng, unsigned int resamples, std::vector<double>::iterator first, std::vector<double>::iterator last,
             Estimator &estimator) {
        auto n = static_cast<size_t>(last - first);
        std::uniform_int_distribution<decltype(n)> dist(0, n - 1);

        sample out;
        out.reserve(resamples);
        std::generate_n(std::back_inserter(out), resamples, [n, first, &estimator, &dist, &rng] {
            std::vector<double> resampled;
            resampled.reserve(n);
            std::generate_n(std::back_inserter(resampled), n,
                            [first, &dist, &rng] { return first[static_cast<std::ptrdiff_t>(dist(rng))]; });
            return estimator(resampled.begin(), resampled.end());
        });
        std::sort(out.begin(), out.end());
        return out;
    }


    double erf_inv(double x) {
        // Code accompanying the article "Approximating the erfinv function" in GPU Computing Gems, Volume 2
        double w, p;

        w = -log((1.0 - x) * (1.0 + x));

        if (w < 6.250000) {
            w = w - 3.125000;
            p = -3.6444120640178196996e-21;
            p = -1.685059138182016589e-19 + p * w;
            p = 1.2858480715256400167e-18 + p * w;
            p = 1.115787767802518096e-17 + p * w;
            p = -1.333171662854620906e-16 + p * w;
            p = 2.0972767875968561637e-17 + p * w;
            p = 6.6376381343583238325e-15 + p * w;
            p = -4.0545662729752068639e-14 + p * w;
            p = -8.1519341976054721522e-14 + p * w;
            p = 2.6335093153082322977e-12 + p * w;
            p = -1.2975133253453532498e-11 + p * w;
            p = -5.4154120542946279317e-11 + p * w;
            p = 1.051212273321532285e-09 + p * w;
            p = -4.1126339803469836976e-09 + p * w;
            p = -2.9070369957882005086e-08 + p * w;
            p = 4.2347877827932403518e-07 + p * w;
            p = -1.3654692000834678645e-06 + p * w;
            p = -1.3882523362786468719e-05 + p * w;
            p = 0.0001867342080340571352 + p * w;
            p = -0.00074070253416626697512 + p * w;
            p = -0.0060336708714301490533 + p * w;
            p = 0.24015818242558961693 + p * w;
            p = 1.6536545626831027356 + p * w;
        }
        else if (w < 16.000000) {
            w = sqrt(w) - 3.250000;
            p = 2.2137376921775787049e-09;
            p = 9.0756561938885390979e-08 + p * w;
            p = -2.7517406297064545428e-07 + p * w;
            p = 1.8239629214389227755e-08 + p * w;
            p = 1.5027403968909827627e-06 + p * w;
            p = -4.013867526981545969e-06 + p * w;
            p = 2.9234449089955446044e-06 + p * w;
            p = 1.2475304481671778723e-05 + p * w;
            p = -4.7318229009055733981e-05 + p * w;
            p = 6.8284851459573175448e-05 + p * w;
            p = 2.4031110387097893999e-05 + p * w;
            p = -0.0003550375203628474796 + p * w;
            p = 0.00095328937973738049703 + p * w;
            p = -0.0016882755560235047313 + p * w;
            p = 0.0024914420961078508066 + p * w;
            p = -0.0037512085075692412107 + p * w;
            p = 0.005370914553590063617 + p * w;
            p = 1.0052589676941592334 + p * w;
            p = 3.0838856104922207635 + p * w;
        }
        else {
            w = sqrt(w) - 5.000000;
            p = -2.7109920616438573243e-11;
            p = -2.5556418169965252055e-10 + p * w;
            p = 1.5076572693500548083e-09 + p * w;
            p = -3.7894654401267369937e-09 + p * w;
            p = 7.6157012080783393804e-09 + p * w;
            p = -1.4960026627149240478e-08 + p * w;
            p = 2.9147953450901080826e-08 + p * w;
            p = -6.7711997758452339498e-08 + p * w;
            p = 2.2900482228026654717e-07 + p * w;
            p = -9.9298272942317002539e-07 + p * w;
            p = 4.5260625972231537039e-06 + p * w;
            p = -1.9681778105531670567e-05 + p * w;
            p = 7.5995277030017761139e-05 + p * w;
            p = -0.00021503011930044477347 + p * w;
            p = -0.00013871931833623122026 + p * w;
            p = 1.0103004648645343977 + p * w;
            p = 4.8499064014085844221 + p * w;
        }
        return p * x;
    }

    double standard_deviation(std::vector<double>::iterator first, std::vector<double>::iterator last) {
        auto m = Catch::Benchmark::Detail::mean(first, last);
        double variance = std::accumulate(first,
                                          last,
                                          0.,
                                          [m](double a, double b) {
                                              double diff = b - m;
                                              return a + diff * diff;
                                          }) /
                          (last - first);
        return std::sqrt(variance);
    }

}

namespace Catch {
    namespace Benchmark {
        namespace Detail {

#if defined( __GNUC__ ) || defined( __clang__ )
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wfloat-equal"
#endif

            bool directCompare(double lhs, double rhs) { return lhs == rhs; }

#if defined( __GNUC__ ) || defined( __clang__ )
#    pragma GCC diagnostic pop
#endif

            double weighted_average_quantile(int k, int q, std::vector<double>::iterator first,
                                             std::vector<double>::iterator last) {
                auto count = last - first;
                double idx = (count - 1) * k / static_cast<double>(q);
                int j = static_cast<int>(idx);
                double g = idx - j;
                std::nth_element(first, first + j, last);
                auto xj = first[j];
                if (directCompare(g, 0)) {
                    return xj;
                }

                auto xj1 = *std::min_element(first + (j + 1), last);
                return xj + g * (xj1 - xj);
            }


            double erfc_inv(double x) {
                return erf_inv(1.0 - x);
            }

            double normal_quantile(double p) {
                static const double ROOT_TWO = std::sqrt(2.0);

                double result = 0.0;
                assert(p >= 0 && p <= 1);
                if (p < 0 || p > 1) {
                    return result;
                }

                result = -erfc_inv(2.0 * p);
                // result *= normal distribution standard deviation (1.0) * sqrt(2)
                result *= /*sd * */ ROOT_TWO;
                // result += normal disttribution mean (0)
                return result;
            }


            double outlier_variance(Estimate<double> mean, Estimate<double> stddev, int n) {
                double sb = stddev.point;
                double mn = mean.point / n;
                double mg_min = mn / 2.;
                double sg = (std::min)(mg_min / 4., sb / std::sqrt(n));
                double sg2 = sg * sg;
                double sb2 = sb * sb;

                auto c_max = [n, mn, sb2, sg2](double x) -> double {
                    double k = mn - x;
                    double d = k * k;
                    double nd = n * d;
                    double k0 = -n * nd;
                    double k1 = sb2 - n * sg2 + nd;
                    double det = k1 * k1 - 4 * sg2 * k0;
                    return static_cast<int>(-2. * k0 / (k1 + std::sqrt(det)));
                };

                auto var_out = [n, sb2, sg2](double c) {
                    double nc = n - c;
                    return (nc / n) * (sb2 - nc * sg2);
                };

                return (std::min)(var_out(1), var_out((std::min)(c_max(0.), c_max(mg_min)))) / sb2;
            }


            bootstrap_analysis
            analyse_samples(double confidence_level, unsigned int n_resamples, std::vector<double>::iterator first,
                            std::vector<double>::iterator last) {
                CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
                CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
                static std::random_device entropy;
                CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION

                auto n = static_cast<int>(last - first); // seriously, one can't use integral types without hell in C++

                auto mean = &Detail::mean<std::vector<double>::iterator>;
                auto stddev = &standard_deviation;

#if defined(CATCH_CONFIG_USE_ASYNC)
                                                                                                                                        auto Estimate = [=](double(*f)(std::vector<double>::iterator, std::vector<double>::iterator)) {
                    auto seed = entropy();
                    return std::async(std::launch::async, [=] {
                        std::mt19937 rng(seed);
                        auto resampled = resample(rng, n_resamples, first, last, f);
                        return bootstrap(confidence_level, first, last, resampled, f);
                    });
                };

                auto mean_future = Estimate(mean);
                auto stddev_future = Estimate(stddev);

                auto mean_estimate = mean_future.get();
                auto stddev_estimate = stddev_future.get();
#else
                auto Estimate = [=](double(*f)(std::vector<double>::iterator, std::vector<double>::iterator)) {
                    auto seed = entropy();
                    std::mt19937 rng(seed);
                    auto resampled = resample(rng, n_resamples, first, last, f);
                    return bootstrap(confidence_level, first, last, resampled, f);
                };

                auto mean_estimate = Estimate(mean);
                auto stddev_estimate = Estimate(stddev);
#endif // CATCH_USE_ASYNC

                double outlier_variance = Detail::outlier_variance(mean_estimate, stddev_estimate, n);

                return {mean_estimate, stddev_estimate, outlier_variance};
            }
        } // namespace Detail
    } // namespace Benchmark
} // namespace Catch



#include <cmath>
#include <limits>

namespace {

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
    bool marginComparison(double lhs, double rhs, double margin) {
        return (lhs + margin >= rhs) && (rhs + margin >= lhs);
    }

}

namespace Catch {

    Approx::Approx(double value)
            : m_epsilon(std::numeric_limits<float>::epsilon() * 100.),
              m_margin(0.0),
              m_scale(0.0),
              m_value(value) {}

    Approx Approx::custom() {
        return Approx(0);
    }

    Approx Approx::operator-() const {
        auto temp(*this);
        temp.m_value = -temp.m_value;
        return temp;
    }


    std::string Approx::toString() const {
        ReusableStringStream rss;
        rss << "Approx( " << ::Catch::Detail::stringify(m_value) << " )";
        return rss.str();
    }

    bool Approx::equalityComparisonImpl(const double other) const {
        // First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
        // Thanks to Richard Harris for his help refining the scaled margin value
        return marginComparison(m_value, other, m_margin)
               ||
               marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(std::isinf(m_value) ? 0 : m_value)));
    }

    void Approx::setMargin(double newMargin) {
        CATCH_ENFORCE(newMargin >= 0,
                      "Invalid Approx::margin: " << newMargin << '.'
                                                 << " Approx::Margin has to be non-negative.");
        m_margin = newMargin;
    }

    void Approx::setEpsilon(double newEpsilon) {
        CATCH_ENFORCE(newEpsilon >= 0 && newEpsilon <= 1.0,
                      "Invalid Approx::epsilon: " << newEpsilon << '.'
                                                  << " Approx::epsilon has to be in [0, 1]");
        m_epsilon = newEpsilon;
    }

    namespace literals {
        Approx operator "" _a(long double val) {
            return Approx(val);
        }

        Approx operator "" _a(unsigned long long val) {
            return Approx(val);
        }
    } // end namespace literals

    std::string StringMaker<Catch::Approx>::convert(Catch::Approx const &value) {
        return value.toString();
    }

} // end namespace Catch



namespace Catch {

    AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const &_lazyExpression) :
            lazyExpression(_lazyExpression),
            resultType(_resultType) {}

    std::string AssertionResultData::reconstructExpression() const {

        if (reconstructedExpression.empty()) {
            if (lazyExpression) {
                ReusableStringStream rss;
                rss << lazyExpression;
                reconstructedExpression = rss.str();
            }
        }
        return reconstructedExpression;
    }

    AssertionResult::AssertionResult(AssertionInfo const &info, AssertionResultData const &data)
            : m_info(info),
              m_resultData(data) {}

    // Result was a success
    bool AssertionResult::succeeded() const {
        return Catch::isOk(m_resultData.resultType);
    }

    // Result was a success, or failure is suppressed
    bool AssertionResult::isOk() const {
        return Catch::isOk(m_resultData.resultType) || shouldSuppressFailure(m_info.resultDisposition);
    }

    ResultWas::OfType AssertionResult::getResultType() const {
        return m_resultData.resultType;
    }

    bool AssertionResult::hasExpression() const {
        return !m_info.capturedExpression.empty();
    }

    bool AssertionResult::hasMessage() const {
        return !m_resultData.message.empty();
    }

    std::string AssertionResult::getExpression() const {
        // Possibly overallocating by 3 characters should be basically free
        std::string expr;
        expr.reserve(m_info.capturedExpression.size() + 3);
        if (isFalseTest(m_info.resultDisposition)) {
            expr += "!(";
        }
        expr += m_info.capturedExpression;
        if (isFalseTest(m_info.resultDisposition)) {
            expr += ')';
        }
        return expr;
    }

    std::string AssertionResult::getExpressionInMacro() const {
        std::string expr;
        if (m_info.macroName.empty())
            expr = static_cast<std::string>(m_info.capturedExpression);
        else {
            expr.reserve(m_info.macroName.size() + m_info.capturedExpression.size() + 4);
            expr += m_info.macroName;
            expr += "( ";
            expr += m_info.capturedExpression;
            expr += " )";
        }
        return expr;
    }

    bool AssertionResult::hasExpandedExpression() const {
        return hasExpression() && getExpandedExpression() != getExpression();
    }

    std::string AssertionResult::getExpandedExpression() const {
        std::string expr = m_resultData.reconstructExpression();
        return expr.empty()
               ? getExpression()
               : expr;
    }

    StringRef AssertionResult::getMessage() const {
        return m_resultData.message;
    }

    SourceLineInfo AssertionResult::getSourceInfo() const {
        return m_info.lineInfo;
    }

    StringRef AssertionResult::getTestMacroName() const {
        return m_info.macroName;
    }

} // end namespace Catch



namespace {
    bool provideBazelReporterOutput() {
#ifdef CATCH_CONFIG_BAZEL_SUPPORT
        return true;
#else

#    if defined( _MSC_VER )
                                                                                                                                // On Windows getenv throws a warning as there is no input validation,
        // since the switch is hardcoded, this should not be an issue.
#        pragma warning( push )
#        pragma warning( disable : 4996 )
#    endif

        return std::getenv("BAZEL_TEST") != nullptr;

#    if defined( _MSC_VER )
#        pragma warning( pop )
#    endif
#endif
    }
}

namespace Catch {

    bool operator==(ProcessedReporterSpec const &lhs,
                    ProcessedReporterSpec const &rhs) {
        return lhs.name == rhs.name &&
               lhs.outputFilename == rhs.outputFilename &&
               lhs.colourMode == rhs.colourMode &&
               lhs.customOptions == rhs.customOptions;
    }

    Config::Config(ConfigData const &data) :
            m_data(data) {
        // We need to trim filter specs to avoid trouble with superfluous
        // whitespace (esp. important for bdd macros, as those are manually
        // aligned with whitespace).

        for (auto &elem: m_data.testsOrTags) {
            elem = trim(elem);
        }
        for (auto &elem: m_data.sectionsToRun) {
            elem = trim(elem);
        }


        TestSpecParser parser(ITagAliasRegistry::get());
        if (!m_data.testsOrTags.empty()) {
            m_hasTestFilters = true;
            for (auto const &testOrTags: m_data.testsOrTags) {
                parser.parse(testOrTags);
            }
        }
        m_testSpec = parser.testSpec();


        // Insert the default reporter if user hasn't asked for a specfic one
        if (m_data.reporterSpecifications.empty()) {
            m_data.reporterSpecifications.push_back({
#if defined( CATCH_CONFIG_DEFAULT_REPORTER )
                                                            CATCH_CONFIG_DEFAULT_REPORTER,
#else
                                                            "console",
#endif
                                                            {}, {}, {}
                                                    });
        }

        if (provideBazelReporterOutput()) {
            // Register a JUnit reporter for Bazel. Bazel sets an environment
            // variable with the path to XML output. If this file is written to
            // during test, Bazel will not generate a default XML output.
            // This allows the XML output file to contain higher level of detail
            // than what is possible otherwise.
#    if defined( _MSC_VER )
                                                                                                                                    // On Windows getenv throws a warning as there is no input validation,
            // since the key is hardcoded, this should not be an issue.
#           pragma warning( push )
#           pragma warning( disable : 4996 )
#    endif
            const auto bazelOutputFilePtr = std::getenv("XML_OUTPUT_FILE");
#    if defined( _MSC_VER )
#        pragma warning( pop )
#    endif
            if (bazelOutputFilePtr != nullptr) {
                m_data.reporterSpecifications.push_back(
                        {"junit", std::string(bazelOutputFilePtr), {}, {}});
            }
        }


        // We now fixup the reporter specs to handle default output spec,
        // default colour spec, etc
        bool defaultOutputUsed = false;
        for (auto const &reporterSpec: m_data.reporterSpecifications) {
            // We do the default-output check separately, while always
            // using the default output below to make the code simpler
            // and avoid superfluous copies.
            if (reporterSpec.outputFile().none()) {
                CATCH_ENFORCE(!defaultOutputUsed,
                              "Internal error: cannot use default output for "
                              "multiple reporters");
                defaultOutputUsed = true;
            }

            m_processedReporterSpecs.push_back(ProcessedReporterSpec{
                    reporterSpec.name(),
                    reporterSpec.outputFile() ? *reporterSpec.outputFile()
                                              : data.defaultOutputFilename,
                    reporterSpec.colourMode().valueOr(data.defaultColourMode),
                    reporterSpec.customOptions()});
        }
    }

    Config::~Config() = default;


    bool Config::listTests() const { return m_data.listTests; }

    bool Config::listTags() const { return m_data.listTags; }

    bool Config::listReporters() const { return m_data.listReporters; }

    bool Config::listListeners() const { return m_data.listListeners; }

    std::vector<std::string> const &Config::getTestsOrTags() const { return m_data.testsOrTags; }

    std::vector<std::string> const &Config::getSectionsToRun() const { return m_data.sectionsToRun; }

    std::vector<ReporterSpec> const &Config::getReporterSpecs() const {
        return m_data.reporterSpecifications;
    }

    std::vector<ProcessedReporterSpec> const &
    Config::getProcessedReporterSpecs() const {
        return m_processedReporterSpecs;
    }

    TestSpec const &Config::testSpec() const { return m_testSpec; }

    bool Config::hasTestFilters() const { return m_hasTestFilters; }

    bool Config::showHelp() const { return m_data.showHelp; }

    // IConfig interface
    bool Config::allowThrows() const { return !m_data.noThrow; }

    StringRef Config::name() const { return m_data.name.empty() ? m_data.processName : m_data.name; }

    bool Config::includeSuccessfulResults() const { return m_data.showSuccessfulTests; }

    bool Config::warnAboutMissingAssertions() const {
        return !!(m_data.warnings & WarnAbout::NoAssertions);
    }

    bool Config::warnAboutUnmatchedTestSpecs() const {
        return !!(m_data.warnings & WarnAbout::UnmatchedTestSpec);
    }

    bool Config::zeroTestsCountAsSuccess() const { return m_data.allowZeroTests; }

    ShowDurations Config::showDurations() const { return m_data.showDurations; }

    double Config::minDuration() const { return m_data.minDuration; }

    TestRunOrder Config::runOrder() const { return m_data.runOrder; }

    uint32_t Config::rngSeed() const { return m_data.rngSeed; }

    unsigned int Config::shardCount() const { return m_data.shardCount; }

    unsigned int Config::shardIndex() const { return m_data.shardIndex; }

    ColourMode Config::defaultColourMode() const { return m_data.defaultColourMode; }

    bool Config::shouldDebugBreak() const { return m_data.shouldDebugBreak; }

    int Config::abortAfter() const { return m_data.abortAfter; }

    bool Config::showInvisibles() const { return m_data.showInvisibles; }

    Verbosity Config::verbosity() const { return m_data.verbosity; }

    bool Config::skipBenchmarks() const { return m_data.skipBenchmarks; }

    bool Config::benchmarkNoAnalysis() const { return m_data.benchmarkNoAnalysis; }

    unsigned int Config::benchmarkSamples() const { return m_data.benchmarkSamples; }

    double Config::benchmarkConfidenceInterval() const { return m_data.benchmarkConfidenceInterval; }

    unsigned int Config::benchmarkResamples() const { return m_data.benchmarkResamples; }

    std::chrono::milliseconds Config::benchmarkWarmupTime() const {
        return std::chrono::milliseconds(m_data.benchmarkWarmupTime);
    }

} // end namespace Catch



#include <cassert>
#include <stack>

namespace Catch {

    ////////////////////////////////////////////////////////////////////////////


    ScopedMessage::ScopedMessage(MessageBuilder const &builder) :
            m_info(builder.m_info) {
        m_info.message = builder.m_stream.str();
        getResultCapture().pushScopedMessage(m_info);
    }

    ScopedMessage::ScopedMessage(ScopedMessage &&old) noexcept:
            m_info(CATCH_MOVE(old.m_info)) {
        old.m_moved = true;
    }

    ScopedMessage::~ScopedMessage() {
        if (!uncaught_exceptions() && !m_moved) {
            getResultCapture().popScopedMessage(m_info);
        }
    }


    Capturer::Capturer(StringRef macroName, SourceLineInfo const &lineInfo, ResultWas::OfType resultType,
                       StringRef names) {
        auto trimmed = [&](size_t start, size_t end) {
            while (names[start] == ',' || isspace(static_cast<unsigned char>(names[start]))) {
                ++start;
            }
            while (names[end] == ',' || isspace(static_cast<unsigned char>(names[end]))) {
                --end;
            }
            return names.substr(start, end - start + 1);
        };
        auto skipq = [&](size_t start, char quote) {
            for (auto i = start + 1; i < names.size(); ++i) {
                if (names[i] == quote)
                    return i;
                if (names[i] == '\\')
                    ++i;
            }
            CATCH_INTERNAL_ERROR("CAPTURE parsing encountered unmatched quote");
        };

        size_t start = 0;
        std::stack<char> openings;
        for (size_t pos = 0; pos < names.size(); ++pos) {
            char c = names[pos];
            switch (c) {
                case '[':
                case '{':
                case '(':
                    // It is basically impossible to disambiguate between
                    // comparison and start of template args in this context
//            case '<':
                    openings.push(c);
                    break;
                case ']':
                case '}':
                case ')':
//           case '>':
                    openings.pop();
                    break;
                case '"':
                case '\'':pos = skipq(pos, c);
                    break;
                case ',':
                    if (start != pos && openings.empty()) {
                        m_messages.emplace_back(macroName, lineInfo, resultType);
                        m_messages.back().message = static_cast<std::string>(trimmed(start, pos));
                        m_messages.back().message += " := ";
                        start = pos;
                    }
            }
        }
        assert(openings.empty() && "Mismatched openings");
        m_messages.emplace_back(macroName, lineInfo, resultType);
        m_messages.back().message = static_cast<std::string>(trimmed(start, names.size() - 1));
        m_messages.back().message += " := ";
    }

    Capturer::~Capturer() {
        if (!uncaught_exceptions()) {
            assert(m_captured == m_messages.size());
            for (size_t i = 0; i < m_captured; ++i)
                m_resultCapture.popScopedMessage(m_messages[i]);
        }
    }

    void Capturer::captureValue(size_t index, std::string const &value) {
        assert(index < m_messages.size());
        m_messages[index].message += value;
        m_resultCapture.pushScopedMessage(m_messages[index]);
        m_captured++;
    }

} // end namespace Catch




namespace Catch {

    namespace {

        class RegistryHub : public IRegistryHub,
                            public IMutableRegistryHub,
                            private Detail::NonCopyable {

        public: // IRegistryHub
            RegistryHub() = default;

            IReporterRegistry const &getReporterRegistry() const override {
                return m_reporterRegistry;
            }

            ITestCaseRegistry const &getTestCaseRegistry() const override {
                return m_testCaseRegistry;
            }

            IExceptionTranslatorRegistry const &getExceptionTranslatorRegistry() const override {
                return m_exceptionTranslatorRegistry;
            }

            ITagAliasRegistry const &getTagAliasRegistry() const override {
                return m_tagAliasRegistry;
            }

            StartupExceptionRegistry const &getStartupExceptionRegistry() const override {
                return m_exceptionRegistry;
            }

        public: // IMutableRegistryHub
            void registerReporter(std::string const &name, IReporterFactoryPtr factory) override {
                m_reporterRegistry.registerReporter(name, CATCH_MOVE(factory));
            }

            void registerListener(Detail::unique_ptr<EventListenerFactory> factory) override {
                m_reporterRegistry.registerListener(CATCH_MOVE(factory));
            }

            void registerTest(Detail::unique_ptr<TestCaseInfo> &&testInfo,
                              Detail::unique_ptr<ITestInvoker> &&invoker) override {
                m_testCaseRegistry.registerTest(CATCH_MOVE(testInfo), CATCH_MOVE(invoker));
            }

            void registerTranslator(Detail::unique_ptr<IExceptionTranslator> &&translator) override {
                m_exceptionTranslatorRegistry.registerTranslator(CATCH_MOVE(translator));
            }

            void registerTagAlias(std::string const &alias, std::string const &tag,
                                  SourceLineInfo const &lineInfo) override {
                m_tagAliasRegistry.add(alias, tag, lineInfo);
            }

            void registerStartupException() noexcept override {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
                m_exceptionRegistry.add(std::current_exception());
#else
                CATCH_INTERNAL_ERROR("Attempted to register active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
#endif
            }

            IMutableEnumValuesRegistry &getMutableEnumValuesRegistry() override {
                return m_enumValuesRegistry;
            }

        private:
            TestRegistry m_testCaseRegistry;
            ReporterRegistry m_reporterRegistry;
            ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
            TagAliasRegistry m_tagAliasRegistry;
            StartupExceptionRegistry m_exceptionRegistry;
            Detail::EnumValuesRegistry m_enumValuesRegistry;
        };
    }

    using RegistryHubSingleton = Singleton<RegistryHub, IRegistryHub, IMutableRegistryHub>;

    IRegistryHub const &getRegistryHub() {
        return RegistryHubSingleton::get();
    }

    IMutableRegistryHub &getMutableRegistryHub() {
        return RegistryHubSingleton::getMutable();
    }

    void cleanUp() {
        cleanupSingletons();
        cleanUpContext();
    }

    std::string translateActiveException() {
        return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
    }


} // end namespace Catch



#include <algorithm>
#include <cassert>
#include <iomanip>
#include <set>

namespace Catch {

    namespace {
        const int MaxExitCode = 255;

        IEventListenerPtr createReporter(std::string const &reporterName, ReporterConfig &&config) {
            auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, CATCH_MOVE(config));
            CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << '\'');

            return reporter;
        }

        IEventListenerPtr prepareReporters(Config const *config) {
            if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty()
                && config->getProcessedReporterSpecs().size() == 1) {
                auto const &spec = config->getProcessedReporterSpecs()[0];
                return createReporter(
                        spec.name,
                        ReporterConfig(config,
                                       makeStream(spec.outputFilename),
                                       spec.colourMode,
                                       spec.customOptions));
            }

            auto multi = Detail::make_unique<MultiReporter>(config);

            auto const &listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
            for (auto const &listener: listeners) {
                multi->addListener(listener->create(config));
            }

            std::size_t reporterIdx = 0;
            for (auto const &reporterSpec: config->getProcessedReporterSpecs()) {
                multi->addReporter(createReporter(
                        reporterSpec.name,
                        ReporterConfig(config,
                                       makeStream(reporterSpec.outputFilename),
                                       reporterSpec.colourMode,
                                       reporterSpec.customOptions)));
                reporterIdx++;
            }

            return multi;
        }

        class TestGroup {
        public:
            explicit TestGroup(IEventListenerPtr &&reporter, Config const *config) :
                    m_reporter(reporter.get()),
                    m_config{config},
                    m_context{config, CATCH_MOVE(reporter)} {

                assert(m_config->testSpec().getInvalidSpecs().empty() &&
                       "Invalid test specs should be handled before running tests");

                auto const &allTestCases = getAllTestCasesSorted(*m_config);
                auto const &testSpec = m_config->testSpec();
                if (!testSpec.hasFilters()) {
                    for (auto const &test: allTestCases) {
                        if (!test.getTestCaseInfo().isHidden()) {
                            m_tests.emplace(&test);
                        }
                    }
                }
                else {
                    m_matches =
                            testSpec.matchesByFilter(allTestCases, *m_config);
                    for (auto const &match: m_matches) {
                        m_tests.insert(match.tests.begin(),
                                       match.tests.end());
                    }
                }

                m_tests = createShard(m_tests, m_config->shardCount(), m_config->shardIndex());
            }

            Totals execute() {
                Totals totals;
                for (auto const &testCase: m_tests) {
                    if (!m_context.aborting())
                        totals += m_context.runTest(*testCase);
                    else
                        m_reporter->skipTest(testCase->getTestCaseInfo());
                }

                for (auto const &match: m_matches) {
                    if (match.tests.empty()) {
                        m_unmatchedTestSpecs = true;
                        m_reporter->noMatchingTestCases(match.name);
                    }
                }

                return totals;
            }

            bool hadUnmatchedTestSpecs() const {
                return m_unmatchedTestSpecs;
            }


        private:
            IEventListener *m_reporter;
            Config const *m_config;
            RunContext m_context;
            std::set<TestCaseHandle const *> m_tests;
            TestSpec::Matches m_matches;
            bool m_unmatchedTestSpecs = false;
        };

        void applyFilenamesAsTags() {
            for (auto const &testInfo: getRegistryHub().getTestCaseRegistry().getAllInfos()) {
                testInfo->addFilenameTag();
            }
        }

    } // anon namespace

    Session::Session() {
        static bool alreadyInstantiated = false;
        if (alreadyInstantiated) {
            CATCH_TRY { CATCH_INTERNAL_ERROR("Only one instance of Catch::Session can ever be used"); }
            CATCH_CATCH_ALL { getMutableRegistryHub().registerStartupException(); }
        }

        // There cannot be exceptions at startup in no-exception mode.
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
        const auto &exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
        if (!exceptions.empty()) {
            config();
            getCurrentMutableContext().setConfig(m_config.get());

            m_startupExceptions = true;
            auto errStream = makeStream("%stderr");
            auto colourImpl = makeColourImpl(
                    ColourMode::PlatformDefault, errStream.get());
            auto guard = colourImpl->guardColour(Colour::Red);
            errStream->stream() << "Errors occurred during startup!" << '\n';
            // iterate over all exceptions and notify user
            for (const auto &ex_ptr: exceptions) {
                try {
                    std::rethrow_exception(ex_ptr);
                } catch (std::exception const &ex) {
                    errStream->stream() << TextFlow::Column(ex.what()).indent(2) << '\n';
                }
            }
        }
#endif

        alreadyInstantiated = true;
        m_cli = makeCommandLineParser(m_configData);
    }

    Session::~Session() {
        Catch::cleanUp();
    }

    void Session::showHelp() const {
        Catch::cout()
                << "\nCatch2 v" << libraryVersion() << '\n'
                << m_cli << '\n'
                << "For more detailed usage please see the project docs\n\n" << std::flush;
    }

    void Session::libIdentify() {
        Catch::cout()
                << std::left << std::setw(16) << "description: " << "A Catch2 test executable\n"
                << std::left << std::setw(16) << "category: " << "testframework\n"
                << std::left << std::setw(16) << "framework: " << "Catch2\n"
                << std::left << std::setw(16) << "version: " << libraryVersion() << '\n' << std::flush;
    }

    int Session::applyCommandLine(int argc, char const *const *argv) {
        if (m_startupExceptions)
            return 1;

        auto result = m_cli.parse(Clara::Args(argc, argv));

        if (!result) {
            config();
            getCurrentMutableContext().setConfig(m_config.get());
            auto errStream = makeStream("%stderr");
            auto colour = makeColourImpl(ColourMode::PlatformDefault, errStream.get());

            errStream->stream()
                    << colour->guardColour(Colour::Red)
                    << "\nError(s) in input:\n"
                    << TextFlow::Column(result.errorMessage()).indent(2)
                    << "\n\n";
            errStream->stream() << "Run with -? for usage\n\n" << std::flush;
            return MaxExitCode;
        }

        if (m_configData.showHelp)
            showHelp();
        if (m_configData.libIdentify)
            libIdentify();

        m_config.reset();
        return 0;
    }

#if defined(CATCH_CONFIG_WCHAR) && defined(_WIN32) && defined(UNICODE)
                                                                                                                            int Session::applyCommandLine( int argc, wchar_t const * const * argv ) {

        char **utf8Argv = new char *[ argc ];

        for ( int i = 0; i < argc; ++i ) {
            int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, nullptr, 0, nullptr, nullptr );

            utf8Argv[ i ] = new char[ bufSize ];

            WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, nullptr, nullptr );
        }

        int returnCode = applyCommandLine( argc, utf8Argv );

        for ( int i = 0; i < argc; ++i )
            delete [] utf8Argv[ i ];

        delete [] utf8Argv;

        return returnCode;
    }
#endif

    void Session::useConfigData(ConfigData const &configData) {
        m_configData = configData;
        m_config.reset();
    }

    int Session::run() {
        if ((m_configData.waitForKeypress & WaitForKeypress::BeforeStart) != 0) {
            Catch::cout() << "...waiting for enter/ return before starting\n" << std::flush;
            static_cast<void>(std::getchar());
        }
        int exitCode = runInternal();
        if ((m_configData.waitForKeypress & WaitForKeypress::BeforeExit) != 0) {
            Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << '\n'
                          << std::flush;
            static_cast<void>(std::getchar());
        }
        return exitCode;
    }

    Clara::Parser const &Session::cli() const {
        return m_cli;
    }

    void Session::cli(Clara::Parser const &newParser) {
        m_cli = newParser;
    }

    ConfigData &Session::configData() {
        return m_configData;
    }

    Config &Session::config() {
        if (!m_config)
            m_config = Detail::make_unique<Config>(m_configData);
        return *m_config;
    }

    int Session::runInternal() {
        if (m_startupExceptions)
            return 1;

        if (m_configData.showHelp || m_configData.libIdentify) {
            return 0;
        }

        if (m_configData.shardIndex >= m_configData.shardCount) {
            Catch::cerr() << "The shard count (" << m_configData.shardCount
                          << ") must be greater than the shard index ("
                          << m_configData.shardIndex << ")\n"
                          << std::flush;
            return 1;
        }

        CATCH_TRY {
            config(); // Force config to be constructed

            seedRng(*m_config);

            if (m_configData.filenamesAsTags) {
                applyFilenamesAsTags();
            }

            // Set up global config instance before we start calling into other functions
            getCurrentMutableContext().setConfig(m_config.get());

            // Create reporter(s) so we can route listings through them
            auto reporter = prepareReporters(m_config.get());

            auto const &invalidSpecs = m_config->testSpec().getInvalidSpecs();
            if (!invalidSpecs.empty()) {
                for (auto const &spec: invalidSpecs) {
                    reporter->reportInvalidTestSpec(spec);
                }
                return 1;
            }


            // Handle list request
            if (list(*reporter, *m_config)) {
                return 0;
            }

            TestGroup tests{CATCH_MOVE(reporter), m_config.get()};
            auto const totals = tests.execute();

            if (tests.hadUnmatchedTestSpecs()
                && m_config->warnAboutUnmatchedTestSpecs()) {
                return 3;
            }

            if (totals.testCases.total() == 0
                && !m_config->zeroTestsCountAsSuccess()) {
                return 2;
            }

            // Note that on unices only the lower 8 bits are usually used, clamping
            // the return value to 255 prevents false negative when some multiple
            // of 256 tests has failed
            return (std::min) (MaxExitCode, static_cast<int>(totals.assertions.failed));
        }
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
        catch (std::exception &ex) {
            Catch::cerr() << ex.what() << '\n' << std::flush;
            return MaxExitCode;
        }
#endif
    }

} // end namespace Catch




namespace Catch {

    RegistrarForTagAliases::RegistrarForTagAliases(char const *alias, char const *tag, SourceLineInfo const &lineInfo) {
        CATCH_TRY {
            getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
        } CATCH_CATCH_ALL {
            // Do not throw when constructing global objects, instead register the exception to be processed later
            getMutableRegistryHub().registerStartupException();
        }
    }

}


#include <cassert>
#include <cctype>
#include <algorithm>

namespace Catch {

    namespace {
        using TCP_underlying_type = uint8_t;
        static_assert(sizeof(TestCaseProperties) == sizeof(TCP_underlying_type),
                      "The size of the TestCaseProperties is different from the assumed size");

        TestCaseProperties operator|(TestCaseProperties lhs, TestCaseProperties rhs) {
            return static_cast<TestCaseProperties>(
                    static_cast<TCP_underlying_type>(lhs) | static_cast<TCP_underlying_type>(rhs)
            );
        }

        TestCaseProperties &operator|=(TestCaseProperties &lhs, TestCaseProperties rhs) {
            lhs = static_cast<TestCaseProperties>(
                    static_cast<TCP_underlying_type>(lhs) | static_cast<TCP_underlying_type>(rhs)
            );
            return lhs;
        }

        TestCaseProperties operator&(TestCaseProperties lhs, TestCaseProperties rhs) {
            return static_cast<TestCaseProperties>(
                    static_cast<TCP_underlying_type>(lhs) & static_cast<TCP_underlying_type>(rhs)
            );
        }

        bool applies(TestCaseProperties tcp) {
            static_assert(static_cast<TCP_underlying_type>(TestCaseProperties::None) == 0,
                          "TestCaseProperties::None must be equal to 0");
            return tcp != TestCaseProperties::None;
        }

        TestCaseProperties parseSpecialTag(StringRef tag) {
            if (!tag.empty() && tag[0] == '.')
                return TestCaseProperties::IsHidden;
            else if (tag == "!throws"_sr)
                return TestCaseProperties::Throws;
            else if (tag == "!shouldfail"_sr)
                return TestCaseProperties::ShouldFail;
            else if (tag == "!mayfail"_sr)
                return TestCaseProperties::MayFail;
            else if (tag == "!nonportable"_sr)
                return TestCaseProperties::NonPortable;
            else if (tag == "!benchmark"_sr)
                return TestCaseProperties::Benchmark | TestCaseProperties::IsHidden;
            else
                return TestCaseProperties::None;
        }

        bool isReservedTag(StringRef tag) {
            return parseSpecialTag(tag) == TestCaseProperties::None
                   && tag.size() > 0
                   && !std::isalnum(static_cast<unsigned char>(tag[0]));
        }

        void enforceNotReservedTag(StringRef tag, SourceLineInfo const &_lineInfo) {
            CATCH_ENFORCE(!isReservedTag(tag),
                          "Tag name: [" << tag << "] is not allowed.\n"
                                        << "Tag names starting with non alphanumeric characters are reserved\n"
                                        << _lineInfo);
        }

        std::string makeDefaultName() {
            static size_t counter = 0;
            return "Anonymous test case " + std::to_string(++counter);
        }

        StringRef extractFilenamePart(StringRef filename) {
            size_t lastDot = filename.size();
            while (lastDot > 0 && filename[lastDot - 1] != '.') {
                --lastDot;
            }
            --lastDot;

            size_t nameStart = lastDot;
            while (nameStart > 0 && filename[nameStart - 1] != '/' && filename[nameStart - 1] != '\\') {
                --nameStart;
            }

            return filename.substr(nameStart, lastDot - nameStart);
        }

        // Returns the upper bound on size of extra tags ([#file]+[.])
        size_t sizeOfExtraTags(StringRef filepath) {
            // [.] is 3, [#] is another 3
            const size_t extras = 3 + 3;
            return extractFilenamePart(filepath).size() + extras;
        }
    } // end unnamed namespace

    bool operator<(Tag const &lhs, Tag const &rhs) {
        Detail::CaseInsensitiveLess cmp;
        return cmp(lhs.original, rhs.original);
    }

    bool operator==(Tag const &lhs, Tag const &rhs) {
        Detail::CaseInsensitiveEqualTo cmp;
        return cmp(lhs.original, rhs.original);
    }

    Detail::unique_ptr<TestCaseInfo>
    makeTestCaseInfo(StringRef _className,
                     NameAndTags const &nameAndTags,
                     SourceLineInfo const &_lineInfo) {
        return Detail::make_unique<TestCaseInfo>(_className, nameAndTags, _lineInfo);
    }

    TestCaseInfo::TestCaseInfo(StringRef _className,
                               NameAndTags const &_nameAndTags,
                               SourceLineInfo const &_lineInfo) :
            name(_nameAndTags.name.empty() ? makeDefaultName() : _nameAndTags.name),
            className(_className),
            lineInfo(_lineInfo) {
        StringRef originalTags = _nameAndTags.tags;
        // We need to reserve enough space to store all of the tags
        // (including optional hidden tag and filename tag)
        auto requiredSize = originalTags.size() + sizeOfExtraTags(_lineInfo.file);
        backingTags.reserve(requiredSize);

        // We cannot copy the tags directly, as we need to normalize
        // some tags, so that [.foo] is copied as [.][foo].
        size_t tagStart = 0;
        size_t tagEnd = 0;
        bool inTag = false;
        for (size_t idx = 0; idx < originalTags.size(); ++idx) {
            auto c = originalTags[idx];
            if (c == '[') {
                assert(!inTag);
                inTag = true;
                tagStart = idx;
            }
            if (c == ']') {
                assert(inTag);
                inTag = false;
                tagEnd = idx;
                assert(tagStart < tagEnd);

                // We need to check the tag for special meanings, copy
                // it over to backing storage and actually reference the
                // backing storage in the saved tags
                StringRef tagStr = originalTags.substr(tagStart + 1, tagEnd - tagStart - 1);
                CATCH_ENFORCE(!tagStr.empty(), "Empty tags are not allowed");
                enforceNotReservedTag(tagStr, lineInfo);
                properties |= parseSpecialTag(tagStr);
                // When copying a tag to the backing storage, we need to
                // check if it is a merged hide tag, such as [.foo], and
                // if it is, we need to handle it as if it was [foo].
                if (tagStr.size() > 1 && tagStr[0] == '.') {
                    tagStr = tagStr.substr(1, tagStr.size() - 1);
                }
                // We skip over dealing with the [.] tag, as we will add
                // it later unconditionally and then sort and unique all
                // the tags.
                internalAppendTag(tagStr);
            }
            (void) inTag; // Silence "set-but-unused" warning in release mode.
        }
        // Add [.] if relevant
        if (isHidden()) {
            internalAppendTag("."_sr);
        }

        // Sort and prepare tags
        std::sort(begin(tags), end(tags));
        tags.erase(std::unique(begin(tags), end(tags)),
                   end(tags));
    }

    bool TestCaseInfo::isHidden() const {
        return applies(properties & TestCaseProperties::IsHidden);
    }

    bool TestCaseInfo::throws() const {
        return applies(properties & TestCaseProperties::Throws);
    }

    bool TestCaseInfo::okToFail() const {
        return applies(properties & (TestCaseProperties::ShouldFail | TestCaseProperties::MayFail));
    }

    bool TestCaseInfo::expectedToFail() const {
        return applies(properties & (TestCaseProperties::ShouldFail));
    }

    void TestCaseInfo::addFilenameTag() {
        std::string combined("#");
        combined += extractFilenamePart(lineInfo.file);
        internalAppendTag(combined);
    }

    std::string TestCaseInfo::tagsAsString() const {
        std::string ret;
        // '[' and ']' per tag
        std::size_t full_size = 2 * tags.size();
        for (const auto &tag: tags) {
            full_size += tag.original.size();
        }
        ret.reserve(full_size);
        for (const auto &tag: tags) {
            ret.push_back('[');
            ret += tag.original;
            ret.push_back(']');
        }

        return ret;
    }

    void TestCaseInfo::internalAppendTag(StringRef tagStr) {
        backingTags += '[';
        const auto backingStart = backingTags.size();
        backingTags += tagStr;
        const auto backingEnd = backingTags.size();
        backingTags += ']';
        tags.emplace_back(StringRef(backingTags.c_str() + backingStart, backingEnd - backingStart));
    }

    bool operator<(TestCaseInfo const &lhs, TestCaseInfo const &rhs) {
        // We want to avoid redoing the string comparisons multiple times,
        // so we store the result of a three-way comparison before using
        // it in the actual comparison logic.
        const auto cmpName = lhs.name.compare(rhs.name);
        if (cmpName != 0) {
            return cmpName < 0;
        }
        const auto cmpClassName = lhs.className.compare(rhs.className);
        if (cmpClassName != 0) {
            return cmpClassName < 0;
        }
        return lhs.tags < rhs.tags;
    }

    TestCaseInfo const &TestCaseHandle::getTestCaseInfo() const {
        return *m_info;
    }

} // end namespace Catch



#include <algorithm>
#include <string>
#include <vector>

namespace Catch {

    TestSpec::Pattern::Pattern(std::string const &name)
            : m_name(name) {}

    TestSpec::Pattern::~Pattern() = default;

    std::string const &TestSpec::Pattern::name() const {
        return m_name;
    }


    TestSpec::NamePattern::NamePattern(std::string const &name, std::string const &filterString)
            : Pattern(filterString), m_wildcardPattern(toLower(name), CaseSensitive::No) {}

    bool TestSpec::NamePattern::matches(TestCaseInfo const &testCase) const {
        return m_wildcardPattern.matches(testCase.name);
    }


    TestSpec::TagPattern::TagPattern(std::string const &tag, std::string const &filterString)
            : Pattern(filterString), m_tag(tag) {}

    bool TestSpec::TagPattern::matches(TestCaseInfo const &testCase) const {
        return std::find(begin(testCase.tags),
                         end(testCase.tags),
                         Tag(m_tag)) != end(testCase.tags);
    }

    bool TestSpec::Filter::matches(TestCaseInfo const &testCase) const {
        bool should_use = !testCase.isHidden();
        for (auto const &pattern: m_required) {
            should_use = true;
            if (!pattern->matches(testCase)) {
                return false;
            }
        }
        for (auto const &pattern: m_forbidden) {
            if (pattern->matches(testCase)) {
                return false;
            }
        }
        return should_use;
    }

    std::string TestSpec::Filter::name() const {
        std::string name;
        for (auto const &p: m_required) {
            name += p->name();
        }
        for (auto const &p: m_forbidden) {
            name += p->name();
        }
        return name;
    }


    bool TestSpec::hasFilters() const {
        return !m_filters.empty();
    }

    bool TestSpec::matches(TestCaseInfo const &testCase) const {
        return std::any_of(m_filters.begin(), m_filters.end(), [&](Filter const &f) { return f.matches(testCase); });
    }

    TestSpec::Matches
    TestSpec::matchesByFilter(std::vector<TestCaseHandle> const &testCases, IConfig const &config) const {
        Matches matches(m_filters.size());
        std::transform(m_filters.begin(), m_filters.end(), matches.begin(), [&](Filter const &filter) {
            std::vector<TestCaseHandle const *> currentMatches;
            for (auto const &test: testCases)
                if (isThrowSafe(test, config) && filter.matches(test.getTestCaseInfo()))
                    currentMatches.emplace_back(&test);
            return FilterMatch{filter.name(), currentMatches};
        });
        return matches;
    }

    const TestSpec::vectorStrings &TestSpec::getInvalidSpecs() const {
        return m_invalidSpecs;
    }

}


#include <chrono>

namespace Catch {

    namespace {
        static auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
            return std::chrono::duration_cast<std::chrono::nanoseconds>(
                    std::chrono::high_resolution_clock::now().time_since_epoch()).count();
        }
    } // end unnamed namespace

    void Timer::start() {
        m_nanoseconds = getCurrentNanosecondsSinceEpoch();
    }

    auto Timer::getElapsedNanoseconds() const -> uint64_t {
        return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
    }

    auto Timer::getElapsedMicroseconds() const -> uint64_t {
        return getElapsedNanoseconds() / 1000;
    }

    auto Timer::getElapsedMilliseconds() const -> unsigned int {
        return static_cast<unsigned int>(getElapsedMicroseconds() / 1000);
    }

    auto Timer::getElapsedSeconds() const -> double {
        return getElapsedMicroseconds() / 1000000.0;
    }


} // namespace Catch




#include <cmath>
#include <iomanip>

namespace Catch {

    namespace Detail {

        namespace {
            const int hexThreshold = 255;

            struct Endianness {
                enum Arch {
                    Big, Little
                };

                static Arch which() {
                    int one = 1;
                    // If the lowest byte we read is non-zero, we can assume
                    // that little endian format is used.
                    auto value = *reinterpret_cast<char *>(&one);
                    return value ? Little : Big;
                }
            };

            template<typename T>
            std::string fpToString(T value, int precision) {
                if (Catch::isnan(value)) {
                    return "nan";
                }

                ReusableStringStream rss;
                rss << std::setprecision(precision)
                    << std::fixed
                    << value;
                std::string d = rss.str();
                std::size_t i = d.find_last_not_of('0');
                if (i != std::string::npos && i != d.size() - 1) {
                    if (d[i] == '.')
                        i++;
                    d = d.substr(0, i + 1);
                }
                return d;
            }
        } // end unnamed namespace

        std::string convertIntoString(StringRef string, bool escape_invisibles) {
            std::string ret;
            // This is enough for the "don't escape invisibles" case, and a good
            // lower bound on the "escape invisibles" case.
            ret.reserve(string.size() + 2);

            if (!escape_invisibles) {
                ret += '"';
                ret += string;
                ret += '"';
                return ret;
            }

            ret += '"';
            for (char c: string) {
                switch (c) {
                    case '\r':ret.append("\\r");
                        break;
                    case '\n':ret.append("\\n");
                        break;
                    case '\t':ret.append("\\t");
                        break;
                    case '\f':ret.append("\\f");
                        break;
                    default:ret.push_back(c);
                        break;
                }
            }
            ret += '"';

            return ret;
        }

        std::string convertIntoString(StringRef string) {
            return convertIntoString(string, getCurrentContext().getConfig()->showInvisibles());
        }

        std::string rawMemoryToString(const void *object, std::size_t size) {
            // Reverse order for little endian architectures
            int i = 0, end = static_cast<int>( size ), inc = 1;
            if (Endianness::which() == Endianness::Little) {
                i = end - 1;
                end = inc = -1;
            }

            unsigned char const *bytes = static_cast<unsigned char const *>(object);
            ReusableStringStream rss;
            rss << "0x" << std::setfill('0') << std::hex;
            for (; i != end; i += inc)
                rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
            return rss.str();
        }
    } // end Detail namespace



//// ======================================================= ////
//
//   Out-of-line defs for full specialization of StringMaker
//
//// ======================================================= ////

    std::string StringMaker<std::string>::convert(const std::string &str) {
        return Detail::convertIntoString(str);
    }

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW

    std::string StringMaker<std::string_view>::convert(std::string_view str) {
        return Detail::convertIntoString(StringRef(str.data(), str.size()));
    }

#endif

    std::string StringMaker<char const *>::convert(char const *str) {
        if (str) {
            return Detail::convertIntoString(str);
        }
        else {
            return {"{null string}"};
        }
    }

    std::string StringMaker<char *>::convert(char *str) {
        if (str) {
            return Detail::convertIntoString(str);
        }
        else {
            return {"{null string}"};
        }
    }

#ifdef CATCH_CONFIG_WCHAR

    std::string StringMaker<std::wstring>::convert(const std::wstring &wstr) {
        std::string s;
        s.reserve(wstr.size());
        for (auto c: wstr) {
            s += (c <= 0xff) ? static_cast<char>(c) : '?';
        }
        return ::Catch::Detail::stringify(s);
    }

# ifdef CATCH_CONFIG_CPP17_STRING_VIEW

    std::string StringMaker<std::wstring_view>::convert(std::wstring_view str) {
        return StringMaker<std::wstring>::convert(std::wstring(str));
    }

# endif

    std::string StringMaker<wchar_t const *>::convert(wchar_t const *str) {
        if (str) {
            return ::Catch::Detail::stringify(std::wstring{str});
        }
        else {
            return {"{null string}"};
        }
    }

    std::string StringMaker<wchar_t *>::convert(wchar_t *str) {
        if (str) {
            return ::Catch::Detail::stringify(std::wstring{str});
        }
        else {
            return {"{null string}"};
        }
    }

#endif

#if defined(CATCH_CONFIG_CPP17_BYTE)

#include <cstddef>

    std::string StringMaker<std::byte>::convert(std::byte value) {
        return ::Catch::Detail::stringify(std::to_integer<unsigned long long>(value));
    }

#endif // defined(CATCH_CONFIG_CPP17_BYTE)

    std::string StringMaker<int>::convert(int value) {
        return ::Catch::Detail::stringify(static_cast<long long>(value));
    }

    std::string StringMaker<long>::convert(long value) {
        return ::Catch::Detail::stringify(static_cast<long long>(value));
    }

    std::string StringMaker<long long>::convert(long long value) {
        ReusableStringStream rss;
        rss << value;
        if (value > Detail::hexThreshold) {
            rss << " (0x" << std::hex << value << ')';
        }
        return rss.str();
    }

    std::string StringMaker<unsigned int>::convert(unsigned int value) {
        return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
    }

    std::string StringMaker<unsigned long>::convert(unsigned long value) {
        return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
    }

    std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
        ReusableStringStream rss;
        rss << value;
        if (value > Detail::hexThreshold) {
            rss << " (0x" << std::hex << value << ')';
        }
        return rss.str();
    }

    std::string StringMaker<signed char>::convert(signed char value) {
        if (value == '\r') {
            return "'\\r'";
        }
        else if (value == '\f') {
            return "'\\f'";
        }
        else if (value == '\n') {
            return "'\\n'";
        }
        else if (value == '\t') {
            return "'\\t'";
        }
        else if ('\0' <= value && value < ' ') {
            return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
        }
        else {
            char chstr[] = "' '";
            chstr[1] = value;
            return chstr;
        }
    }

    std::string StringMaker<char>::convert(char c) {
        return ::Catch::Detail::stringify(static_cast<signed char>(c));
    }

    std::string StringMaker<unsigned char>::convert(unsigned char c) {
        return ::Catch::Detail::stringify(static_cast<char>(c));
    }

    int StringMaker<float>::precision = 5;

    std::string StringMaker<float>::convert(float value) {
        return Detail::fpToString(value, precision) + 'f';
    }

    int StringMaker<double>::precision = 10;

    std::string StringMaker<double>::convert(double value) {
        return Detail::fpToString(value, precision);
    }

} // end namespace Catch



namespace Catch {

    Counts Counts::operator-(Counts const &other) const {
        Counts diff;
        diff.passed = passed - other.passed;
        diff.failed = failed - other.failed;
        diff.failedButOk = failedButOk - other.failedButOk;
        return diff;
    }

    Counts &Counts::operator+=(Counts const &other) {
        passed += other.passed;
        failed += other.failed;
        failedButOk += other.failedButOk;
        return *this;
    }

    std::uint64_t Counts::total() const {
        return passed + failed + failedButOk;
    }

    bool Counts::allPassed() const {
        return failed == 0 && failedButOk == 0;
    }

    bool Counts::allOk() const {
        return failed == 0;
    }

    Totals Totals::operator-(Totals const &other) const {
        Totals diff;
        diff.assertions = assertions - other.assertions;
        diff.testCases = testCases - other.testCases;
        return diff;
    }

    Totals &Totals::operator+=(Totals const &other) {
        assertions += other.assertions;
        testCases += other.testCases;
        return *this;
    }

    Totals Totals::delta(Totals const &prevTotals) const {
        Totals diff = *this - prevTotals;
        if (diff.assertions.failed > 0)
            ++diff.testCases.failed;
        else if (diff.assertions.failedButOk > 0)
            ++diff.testCases.failedButOk;
        else
            ++diff.testCases.passed;
        return diff;
    }

}


#include <ostream>

namespace Catch {

    Version::Version
            (unsigned int _majorVersion,
             unsigned int _minorVersion,
             unsigned int _patchNumber,
             char const *const _branchName,
             unsigned int _buildNumber)
            : majorVersion(_majorVersion),
              minorVersion(_minorVersion),
              patchNumber(_patchNumber),
              branchName(_branchName),
              buildNumber(_buildNumber) {}

    std::ostream &operator<<(std::ostream &os, Version const &version) {
        os << version.majorVersion << '.'
           << version.minorVersion << '.'
           << version.patchNumber;
        // branchName is never null -> 0th char is \0 if it is empty
        if (version.branchName[0]) {
            os << '-' << version.branchName
               << '.' << version.buildNumber;
        }
        return os;
    }

    Version const &libraryVersion() {
        static Version version(3, 1, 0, "", 0);
        return version;
    }

}


namespace Catch {

    const char *GeneratorException::what() const noexcept {
        return m_msg;
    }

} // end namespace Catch




namespace Catch {

    IGeneratorTracker::~IGeneratorTracker() = default;

    namespace Generators {

        namespace Detail {

            [[noreturn]]
            void throw_generator_exception(char const *msg) {
                Catch::throw_exception(GeneratorException{msg});
            }
        } // end namespace Detail

        GeneratorUntypedBase::~GeneratorUntypedBase() = default;

        auto acquireGeneratorTracker(StringRef generatorName, SourceLineInfo const &lineInfo) -> IGeneratorTracker & {
            return getResultCapture().acquireGeneratorTracker(generatorName, lineInfo);
        }

    } // namespace Generators
} // namespace Catch





std::uint32_t Catch::Generators::Detail::getSeed() { return sharedRng()(); }


namespace Catch {
    IResultCapture::~IResultCapture() = default;
}


namespace Catch {
    IConfig::~IConfig() = default;
}


namespace Catch {
    IExceptionTranslator::~IExceptionTranslator() = default;

    IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
}


#include <string>

namespace Catch {
    namespace Generators {

        bool GeneratorUntypedBase::countedNext() {
            auto ret = next();
            if (ret) {
                m_stringReprCache.clear();
                ++m_currentElementIndex;
            }
            return ret;
        }

        StringRef GeneratorUntypedBase::currentElementAsString() const {
            if (m_stringReprCache.empty()) {
                m_stringReprCache = stringifyImpl();
            }
            return m_stringReprCache;
        }

    } // namespace Generators
} // namespace Catch




namespace Catch {
    IRegistryHub::~IRegistryHub() = default;

    IMutableRegistryHub::~IMutableRegistryHub() = default;
}


#include <algorithm>
#include <cassert>
#include <iomanip>

namespace Catch {

    ReporterConfig::ReporterConfig(
            IConfig const *_fullConfig,
            Detail::unique_ptr<IStream> _stream,
            ColourMode colourMode,
            std::map<std::string, std::string> customOptions) :
            m_stream(CATCH_MOVE(_stream)),
            m_fullConfig(_fullConfig),
            m_colourMode(colourMode),
            m_customOptions(CATCH_MOVE(customOptions)) {}

    Detail::unique_ptr<IStream> ReporterConfig::takeStream() &&{
        assert(m_stream);
        return CATCH_MOVE(m_stream);
    }

    IConfig const *ReporterConfig::fullConfig() const { return m_fullConfig; }

    ColourMode ReporterConfig::colourMode() const { return m_colourMode; }

    std::map<std::string, std::string> const &
    ReporterConfig::customOptions() const {
        return m_customOptions;
    }

    ReporterConfig::~ReporterConfig() = default;

    AssertionStats::AssertionStats(AssertionResult const &_assertionResult,
                                   std::vector<MessageInfo> const &_infoMessages,
                                   Totals const &_totals)
            : assertionResult(_assertionResult),
              infoMessages(_infoMessages),
              totals(_totals) {
        assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;

        if (assertionResult.hasMessage()) {
            // Copy message into messages list.
            // !TBD This should have been done earlier, somewhere
            MessageBuilder builder(assertionResult.getTestMacroName(), assertionResult.getSourceInfo(),
                                   assertionResult.getResultType());
            builder << assertionResult.getMessage();
            builder.m_info.message = builder.m_stream.str();

            infoMessages.push_back(builder.m_info);
        }
    }

    SectionStats::SectionStats(SectionInfo const &_sectionInfo,
                               Counts const &_assertions,
                               double _durationInSeconds,
                               bool _missingAssertions)
            : sectionInfo(_sectionInfo),
              assertions(_assertions),
              durationInSeconds(_durationInSeconds),
              missingAssertions(_missingAssertions) {}


    TestCaseStats::TestCaseStats(TestCaseInfo const &_testInfo,
                                 Totals const &_totals,
                                 std::string const &_stdOut,
                                 std::string const &_stdErr,
                                 bool _aborting)
            : testInfo(&_testInfo),
              totals(_totals),
              stdOut(_stdOut),
              stdErr(_stdErr),
              aborting(_aborting) {}


    TestRunStats::TestRunStats(TestRunInfo const &_runInfo,
                               Totals const &_totals,
                               bool _aborting)
            : runInfo(_runInfo),
              totals(_totals),
              aborting(_aborting) {}

    IEventListener::~IEventListener() = default;

} // end namespace Catch




namespace Catch {
    IReporterFactory::~IReporterFactory() = default;

    EventListenerFactory::~EventListenerFactory() = default;
}


namespace Catch {
    IReporterRegistry::~IReporterRegistry() = default;
}


namespace Catch {
    ITestInvoker::~ITestInvoker() = default;

    ITestCaseRegistry::~ITestCaseRegistry() = default;
}


namespace Catch {

    AssertionHandler::AssertionHandler
            (StringRef macroName,
             SourceLineInfo const &lineInfo,
             StringRef capturedExpression,
             ResultDisposition::Flags resultDisposition)
            : m_assertionInfo{macroName, lineInfo, capturedExpression, resultDisposition},
              m_resultCapture(getResultCapture()) {}

    void AssertionHandler::handleExpr(ITransientExpression const &expr) {
        m_resultCapture.handleExpr(m_assertionInfo, expr, m_reaction);
    }

    void AssertionHandler::handleMessage(ResultWas::OfType resultType, StringRef message) {
        m_resultCapture.handleMessage(m_assertionInfo, resultType, message, m_reaction);
    }

    auto AssertionHandler::allowThrows() const -> bool {
        return getCurrentContext().getConfig()->allowThrows();
    }

    void AssertionHandler::complete() {
        setCompleted();
        if (m_reaction.shouldDebugBreak) {

            // If you find your debugger stopping you here then go one level up on the
            // call-stack for the code that caused it (typically a failed assertion)

            // (To go back to the test and change execution, jump over the throw, next)
            CATCH_BREAK_INTO_DEBUGGER();
        }
        if (m_reaction.shouldThrow) {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
            throw Catch::TestFailureException();
#else
            CATCH_ERROR( "Test failure requires aborting test!" );
#endif
        }
    }

    void AssertionHandler::setCompleted() {
        m_completed = true;
    }

    void AssertionHandler::handleUnexpectedInflightException() {
        m_resultCapture.handleUnexpectedInflightException(m_assertionInfo, Catch::translateActiveException(),
                                                          m_reaction);
    }

    void AssertionHandler::handleExceptionThrownAsExpected() {
        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
    }

    void AssertionHandler::handleExceptionNotThrownAsExpected() {
        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
    }

    void AssertionHandler::handleUnexpectedExceptionNotThrown() {
        m_resultCapture.handleUnexpectedExceptionNotThrown(m_assertionInfo, m_reaction);
    }

    void AssertionHandler::handleThrowingCallSkipped() {
        m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
    }

    // This is the overload that takes a string and infers the Equals matcher from it
    // The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
    void handleExceptionMatchExpr(AssertionHandler &handler, std::string const &str, StringRef matcherString) {
        handleExceptionMatchExpr(handler, Matchers::Equals(str), matcherString);
    }

} // namespace Catch




#include <algorithm>

namespace Catch {
    namespace Detail {

        bool CaseInsensitiveLess::operator()(StringRef lhs,
                                             StringRef rhs) const {
            return std::lexicographical_compare(
                    lhs.begin(), lhs.end(),
                    rhs.begin(), rhs.end(),
                    [](char l, char r) { return toLower(l) < toLower(r); });
        }

        bool
        CaseInsensitiveEqualTo::operator()(StringRef lhs,
                                           StringRef rhs) const {
            return std::equal(
                    lhs.begin(), lhs.end(),
                    rhs.begin(), rhs.end(),
                    [](char l, char r) { return toLower(l) == toLower(r); });
        }

    } // namespace Detail
} // namespace Catch




#include <algorithm>
#include <ostream>

namespace {
    bool isOptPrefix(char c) {
        return c == '-'
#ifdef CATCH_PLATFORM_WINDOWS
            || c == '/'
#endif
                ;
    }

    std::string normaliseOpt(std::string const &optName) {
#ifdef CATCH_PLATFORM_WINDOWS
                                                                                                                                if ( optName[0] == '/' )
            return "-" + optName.substr( 1 );
        else
#endif
        return optName;
    }

} // namespace

namespace Catch {
    namespace Clara {
        namespace Detail {

            void TokenStream::loadBuffer() {
                m_tokenBuffer.clear();

                // Skip any empty strings
                while (it != itEnd && it->empty()) {
                    ++it;
                }

                if (it != itEnd) {
                    auto const &next = *it;
                    if (isOptPrefix(next[0])) {
                        auto delimiterPos = next.find_first_of(" :=");
                        if (delimiterPos != std::string::npos) {
                            m_tokenBuffer.push_back(
                                    {TokenType::Option,
                                     next.substr(0, delimiterPos)});
                            m_tokenBuffer.push_back(
                                    {TokenType::Argument,
                                     next.substr(delimiterPos + 1)});
                        }
                        else {
                            if (next[1] != '-' && next.size() > 2) {
                                std::string opt = "- ";
                                for (size_t i = 1; i < next.size(); ++i) {
                                    opt[1] = next[i];
                                    m_tokenBuffer.push_back(
                                            {TokenType::Option, opt});
                                }
                            }
                            else {
                                m_tokenBuffer.push_back(
                                        {TokenType::Option, next});
                            }
                        }
                    }
                    else {
                        m_tokenBuffer.push_back(
                                {TokenType::Argument, next});
                    }
                }
            }

            TokenStream::TokenStream(Args const &args) :
                    TokenStream(args.m_args.begin(), args.m_args.end()) {}

            TokenStream::TokenStream(Iterator it_, Iterator itEnd_) :
                    it(it_), itEnd(itEnd_) {
                loadBuffer();
            }

            TokenStream &TokenStream::operator++() {
                if (m_tokenBuffer.size() >= 2) {
                    m_tokenBuffer.erase(m_tokenBuffer.begin());
                }
                else {
                    if (it != itEnd)
                        ++it;
                    loadBuffer();
                }
                return *this;
            }

            ParserResult convertInto(std::string const &source,
                                     std::string &target) {
                target = source;
                return ParserResult::ok(ParseResultType::Matched);
            }

            ParserResult convertInto(std::string const &source,
                                     bool &target) {
                std::string srcLC = toLower(source);

                if (srcLC == "y" || srcLC == "1" || srcLC == "true" ||
                    srcLC == "yes" || srcLC == "on") {
                    target = true;
                }
                else if (srcLC == "n" || srcLC == "0" || srcLC == "false" ||
                         srcLC == "no" || srcLC == "off") {
                    target = false;
                }
                else {
                    return ParserResult::runtimeError(
                            "Expected a boolean value but did not recognise: '" +
                            source + '\'');
                }
                return ParserResult::ok(ParseResultType::Matched);
            }

            size_t ParserBase::cardinality() const { return 1; }

            InternalParseResult ParserBase::parse(Args const &args) const {
                return parse(args.exeName(), TokenStream(args));
            }

            ParseState::ParseState(ParseResultType type,
                                   TokenStream const &remainingTokens) :
                    m_type(type), m_remainingTokens(remainingTokens) {}

            ParserResult BoundFlagRef::setFlag(bool flag) {
                m_ref = flag;
                return ParserResult::ok(ParseResultType::Matched);
            }

            ResultBase::~ResultBase() = default;

            bool BoundRef::isContainer() const { return false; }

            bool BoundRef::isFlag() const { return false; }

            bool BoundFlagRefBase::isFlag() const { return true; }

        } // namespace Detail

        Detail::InternalParseResult Arg::parse(std::string const &,
                                               Detail::TokenStream const &tokens) const {
            auto validationResult = validate();
            if (!validationResult)
                return Detail::InternalParseResult(validationResult);

            auto remainingTokens = tokens;
            auto const &token = *remainingTokens;
            if (token.type != Detail::TokenType::Argument)
                return Detail::InternalParseResult::ok(Detail::ParseState(
                        ParseResultType::NoMatch, remainingTokens));

            assert(!m_ref->isFlag());
            auto valueRef =
                    static_cast<Detail::BoundValueRefBase *>(m_ref.get());

            auto result = valueRef->setValue(remainingTokens->token);
            if (!result)
                return Detail::InternalParseResult(result);
            else
                return Detail::InternalParseResult::ok(Detail::ParseState(
                        ParseResultType::Matched, ++remainingTokens));
        }

        Opt::Opt(bool &ref) :
                ParserRefImpl(std::make_shared<Detail::BoundFlagRef>(ref)) {}

        std::vector<Detail::HelpColumns> Opt::getHelpColumns() const {
            std::ostringstream oss;
            bool first = true;
            for (auto const &opt: m_optNames) {
                if (first)
                    first = false;
                else
                    oss << ", ";
                oss << opt;
            }
            if (!m_hint.empty())
                oss << " <" << m_hint << '>';
            return {{oss.str(), m_description}};
        }

        bool Opt::isMatch(std::string const &optToken) const {
            auto normalisedToken = normaliseOpt(optToken);
            for (auto const &name: m_optNames) {
                if (normaliseOpt(name) == normalisedToken)
                    return true;
            }
            return false;
        }

        Detail::InternalParseResult Opt::parse(std::string const &,
                                               Detail::TokenStream const &tokens) const {
            auto validationResult = validate();
            if (!validationResult)
                return Detail::InternalParseResult(validationResult);

            auto remainingTokens = tokens;
            if (remainingTokens &&
                remainingTokens->type == Detail::TokenType::Option) {
                auto const &token = *remainingTokens;
                if (isMatch(token.token)) {
                    if (m_ref->isFlag()) {
                        auto flagRef =
                                static_cast<Detail::BoundFlagRefBase *>(
                                        m_ref.get());
                        auto result = flagRef->setFlag(true);
                        if (!result)
                            return Detail::InternalParseResult(result);
                        if (result.value() ==
                            ParseResultType::ShortCircuitAll)
                            return Detail::InternalParseResult::ok(Detail::ParseState(
                                    result.value(), remainingTokens));
                    }
                    else {
                        auto valueRef =
                                static_cast<Detail::BoundValueRefBase *>(
                                        m_ref.get());
                        ++remainingTokens;
                        if (!remainingTokens)
                            return Detail::InternalParseResult::runtimeError(
                                    "Expected argument following " +
                                    token.token);
                        auto const &argToken = *remainingTokens;
                        if (argToken.type != Detail::TokenType::Argument)
                            return Detail::InternalParseResult::runtimeError(
                                    "Expected argument following " +
                                    token.token);
                        const auto result = valueRef->setValue(argToken.token);
                        if (!result)
                            return Detail::InternalParseResult(result);
                        if (result.value() ==
                            ParseResultType::ShortCircuitAll)
                            return Detail::InternalParseResult::ok(Detail::ParseState(
                                    result.value(), remainingTokens));
                    }
                    return Detail::InternalParseResult::ok(Detail::ParseState(
                            ParseResultType::Matched, ++remainingTokens));
                }
            }
            return Detail::InternalParseResult::ok(
                    Detail::ParseState(ParseResultType::NoMatch, remainingTokens));
        }

        Detail::Result Opt::validate() const {
            if (m_optNames.empty())
                return Detail::Result::logicError("No options supplied to Opt");
            for (auto const &name: m_optNames) {
                if (name.empty())
                    return Detail::Result::logicError(
                            "Option name cannot be empty");
#ifdef CATCH_PLATFORM_WINDOWS
                                                                                                                                        if (name[0] != '-' && name[0] != '/')
                    return Detail::Result::logicError(
                        "Option name must begin with '-' or '/'");
#else
                if (name[0] != '-')
                    return Detail::Result::logicError(
                            "Option name must begin with '-'");
#endif
            }
            return ParserRefImpl::validate();
        }

        ExeName::ExeName() :
                m_name(std::make_shared<std::string>("<executable>")) {}

        ExeName::ExeName(std::string &ref) : ExeName() {
            m_ref = std::make_shared<Detail::BoundValueRef<std::string>>(ref);
        }

        Detail::InternalParseResult
        ExeName::parse(std::string const &,
                       Detail::TokenStream const &tokens) const {
            return Detail::InternalParseResult::ok(
                    Detail::ParseState(ParseResultType::NoMatch, tokens));
        }

        ParserResult ExeName::set(std::string const &newName) {
            auto lastSlash = newName.find_last_of("\\/");
            auto filename = (lastSlash == std::string::npos)
                            ? newName
                            : newName.substr(lastSlash + 1);

            *m_name = filename;
            if (m_ref)
                return m_ref->setValue(filename);
            else
                return ParserResult::ok(ParseResultType::Matched);
        }


        Parser &Parser::operator|=(Parser const &other) {
            m_options.insert(m_options.end(),
                             other.m_options.begin(),
                             other.m_options.end());
            m_args.insert(
                    m_args.end(), other.m_args.begin(), other.m_args.end());
            return *this;
        }

        std::vector<Detail::HelpColumns> Parser::getHelpColumns() const {
            std::vector<Detail::HelpColumns> cols;
            for (auto const &o: m_options) {
                auto childCols = o.getHelpColumns();
                cols.insert(cols.end(), childCols.begin(), childCols.end());
            }
            return cols;
        }

        void Parser::writeToStream(std::ostream &os) const {
            if (!m_exeName.name().empty()) {
                os << "usage:\n"
                   << "  " << m_exeName.name() << ' ';
                bool required = true, first = true;
                for (auto const &arg: m_args) {
                    if (first)
                        first = false;
                    else
                        os << ' ';
                    if (arg.isOptional() && required) {
                        os << '[';
                        required = false;
                    }
                    os << '<' << arg.hint() << '>';
                    if (arg.cardinality() == 0)
                        os << " ... ";
                }
                if (!required)
                    os << ']';
                if (!m_options.empty())
                    os << " options";
                os << "\n\nwhere options are:\n";
            }

            auto rows = getHelpColumns();
            size_t consoleWidth = CATCH_CONFIG_CONSOLE_WIDTH;
            size_t optWidth = 0;
            for (auto const &cols: rows)
                optWidth = (std::max) (optWidth, cols.left.size() + 2);

            optWidth = (std::min) (optWidth, consoleWidth / 2);

            for (auto const &cols: rows) {
                auto row = TextFlow::Column(cols.left)
                                   .width(optWidth)
                                   .indent(2) +
                           TextFlow::Spacer(4) +
                           TextFlow::Column(cols.right)
                                   .width(consoleWidth - 7 - optWidth);
                os << row << '\n';
            }
        }

        Detail::Result Parser::validate() const {
            for (auto const &opt: m_options) {
                auto result = opt.validate();
                if (!result)
                    return result;
            }
            for (auto const &arg: m_args) {
                auto result = arg.validate();
                if (!result)
                    return result;
            }
            return Detail::Result::ok();
        }

        Detail::InternalParseResult
        Parser::parse(std::string const &exeName,
                      Detail::TokenStream const &tokens) const {

            struct ParserInfo {
                ParserBase const *parser = nullptr;
                size_t count = 0;
            };
            std::vector<ParserInfo> parseInfos;
            parseInfos.reserve(m_options.size() + m_args.size());
            for (auto const &opt: m_options) {
                parseInfos.push_back({&opt, 0});
            }
            for (auto const &arg: m_args) {
                parseInfos.push_back({&arg, 0});
            }

            m_exeName.set(exeName);

            auto result = Detail::InternalParseResult::ok(
                    Detail::ParseState(ParseResultType::NoMatch, tokens));
            while (result.value().remainingTokens()) {
                bool tokenParsed = false;

                for (auto &parseInfo: parseInfos) {
                    if (parseInfo.parser->cardinality() == 0 ||
                        parseInfo.count < parseInfo.parser->cardinality()) {
                        result = parseInfo.parser->parse(
                                exeName, result.value().remainingTokens());
                        if (!result)
                            return result;
                        if (result.value().type() !=
                            ParseResultType::NoMatch) {
                            tokenParsed = true;
                            ++parseInfo.count;
                            break;
                        }
                    }
                }

                if (result.value().type() == ParseResultType::ShortCircuitAll)
                    return result;
                if (!tokenParsed)
                    return Detail::InternalParseResult::runtimeError(
                            "Unrecognised token: " +
                            result.value().remainingTokens()->token);
            }
            // !TBD Check missing required options
            return result;
        }

        Args::Args(int argc, char const *const *argv) :
                m_exeName(argv[0]), m_args(argv + 1, argv + argc) {}

        Args::Args(std::initializer_list<std::string> args) :
                m_exeName(*args.begin()),
                m_args(args.begin() + 1, args.end()) {}


        Help::Help(bool &showHelpFlag) :
                Opt([&](bool flag) {
                    showHelpFlag = flag;
                    return ParserResult::ok(ParseResultType::ShortCircuitAll);
                }) {
            static_cast<Opt &> ( *this )(
                    "display usage information")["-?"]["-h"]["--help"]
                    .optional();
        }

    } // namespace Clara
} // namespace Catch




#include <fstream>
#include <string>

namespace Catch {

    Clara::Parser makeCommandLineParser(ConfigData &config) {

        using namespace Clara;

        auto const setWarning = [&](std::string const &warning) {
            if (warning == "NoAssertions") {
                config.warnings = static_cast<WarnAbout::What>(config.warnings | WarnAbout::NoAssertions);
                return ParserResult::ok(ParseResultType::Matched);
            }
            else if (warning == "UnmatchedTestSpec") {
                config.warnings = static_cast<WarnAbout::What>(config.warnings | WarnAbout::UnmatchedTestSpec);
                return ParserResult::ok(ParseResultType::Matched);
            }

            return ParserResult::runtimeError(
                    "Unrecognised warning option: '" + warning + '\'');
        };
        auto const loadTestNamesFromFile = [&](std::string const &filename) {
            std::ifstream f(filename.c_str());
            if (!f.is_open())
                return ParserResult::runtimeError("Unable to load input file: '" + filename + '\'');

            std::string line;
            while (std::getline(f, line)) {
                line = trim(line);
                if (!line.empty() && !startsWith(line, '#')) {
                    if (!startsWith(line, '"'))
                        line = '"' + line + '"';
                    config.testsOrTags.push_back(line);
                    config.testsOrTags.emplace_back(",");
                }
            }
            //Remove comma in the end
            if (!config.testsOrTags.empty())
                config.testsOrTags.erase(config.testsOrTags.end() - 1);

            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setTestOrder = [&](std::string const &order) {
            if (startsWith("declared", order))
                config.runOrder = TestRunOrder::Declared;
            else if (startsWith("lexical", order))
                config.runOrder = TestRunOrder::LexicographicallySorted;
            else if (startsWith("random", order))
                config.runOrder = TestRunOrder::Randomized;
            else
                return ParserResult::runtimeError("Unrecognised ordering: '" + order + '\'');
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setRngSeed = [&](std::string const &seed) {
            if (seed == "time") {
                config.rngSeed = generateRandomSeed(GenerateFrom::Time);
                return ParserResult::ok(ParseResultType::Matched);
            }
            else if (seed == "random-device") {
                config.rngSeed = generateRandomSeed(GenerateFrom::RandomDevice);
                return ParserResult::ok(ParseResultType::Matched);
            }

            CATCH_TRY {
                std::size_t parsedTo = 0;
                unsigned long parsedSeed = std::stoul(seed, &parsedTo, 0);
                if (parsedTo != seed.size()) {
                    return ParserResult::runtimeError("Could not parse '" + seed + "' as seed");
                }

                // TODO: Ideally we could parse unsigned int directly,
                //       but the stdlib doesn't provide helper for that
                //       type. After this is refactored to use fixed size
                //       type, we should check the parsed value is in range
                //       of the underlying type.
                config.rngSeed = static_cast<unsigned int>(parsedSeed);
                return ParserResult::ok(ParseResultType::Matched);
            } CATCH_CATCH_ANON(std::exception const&) {
                return ParserResult::runtimeError("Could not parse '" + seed + "' as seed");
            }
        };
        auto const setDefaultColourMode = [&](std::string const &colourMode) {
            Optional<ColourMode> maybeMode = Catch::Detail::stringToColourMode(toLower(colourMode));
            if (!maybeMode) {
                return ParserResult::runtimeError(
                        "colour mode must be one of: default, ansi, win32, "
                        "or none. '" +
                        colourMode + "' is not recognised");
            }
            auto mode = *maybeMode;
            if (!isColourImplAvailable(mode)) {
                return ParserResult::runtimeError(
                        "colour mode '" + colourMode +
                        "' is not supported in this binary");
            }
            config.defaultColourMode = mode;
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setWaitForKeypress = [&](std::string const &keypress) {
            auto keypressLc = toLower(keypress);
            if (keypressLc == "never")
                config.waitForKeypress = WaitForKeypress::Never;
            else if (keypressLc == "start")
                config.waitForKeypress = WaitForKeypress::BeforeStart;
            else if (keypressLc == "exit")
                config.waitForKeypress = WaitForKeypress::BeforeExit;
            else if (keypressLc == "both")
                config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
            else
                return ParserResult::runtimeError(
                        "keypress argument must be one of: never, start, exit or both. '" + keypress +
                        "' not recognised");
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setVerbosity = [&](std::string const &verbosity) {
            auto lcVerbosity = toLower(verbosity);
            if (lcVerbosity == "quiet")
                config.verbosity = Verbosity::Quiet;
            else if (lcVerbosity == "normal")
                config.verbosity = Verbosity::Normal;
            else if (lcVerbosity == "high")
                config.verbosity = Verbosity::High;
            else
                return ParserResult::runtimeError("Unrecognised verbosity, '" + verbosity + '\'');
            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setReporter = [&](std::string const &userReporterSpec) {
            if (userReporterSpec.empty()) {
                return ParserResult::runtimeError("Received empty reporter spec.");
            }

            Optional<ReporterSpec> parsed =
                    parseReporterSpec(userReporterSpec);
            if (!parsed) {
                return ParserResult::runtimeError(
                        "Could not parse reporter spec '" + userReporterSpec +
                        "'");
            }

            auto const &reporterSpec = *parsed;

            IReporterRegistry::FactoryMap const &factories =
                    getRegistryHub().getReporterRegistry().getFactories();
            auto result = factories.find(reporterSpec.name());

            if (result == factories.end()) {
                return ParserResult::runtimeError(
                        "Unrecognized reporter, '" + reporterSpec.name() +
                        "'. Check available with --list-reporters");
            }


            const bool hadOutputFile = reporterSpec.outputFile().some();
            config.reporterSpecifications.push_back(CATCH_MOVE(*parsed));
            // It would be enough to check this only once at the very end, but
            // there is  not a place where we could call this check, so do it
            // every time it could fail. For valid inputs, this is still called
            // at most once.
            if (!hadOutputFile) {
                int n_reporters_without_file = 0;
                for (auto const &spec: config.reporterSpecifications) {
                    if (spec.outputFile().none()) {
                        n_reporters_without_file++;
                    }
                }
                if (n_reporters_without_file > 1) {
                    return ParserResult::runtimeError("Only one reporter may have unspecified output file.");
                }
            }

            return ParserResult::ok(ParseResultType::Matched);
        };
        auto const setShardCount = [&](std::string const &shardCount) {
            CATCH_TRY {
                std::size_t parsedTo = 0;
                int64_t parsedCount = std::stoll(shardCount, &parsedTo, 0);
                if (parsedTo != shardCount.size()) {
                    return ParserResult::runtimeError("Could not parse '" + shardCount + "' as shard count");
                }
                if (parsedCount <= 0) {
                    return ParserResult::runtimeError("Shard count must be a positive number");
                }

                config.shardCount = static_cast<unsigned int>(parsedCount);
                return ParserResult::ok(ParseResultType::Matched);
            } CATCH_CATCH_ANON(std::exception const&) {
                return ParserResult::runtimeError("Could not parse '" + shardCount + "' as shard count");
            }
        };

        auto const setShardIndex = [&](std::string const &shardIndex) {
            CATCH_TRY {
                std::size_t parsedTo = 0;
                int64_t parsedIndex = std::stoll(shardIndex, &parsedTo, 0);
                if (parsedTo != shardIndex.size()) {
                    return ParserResult::runtimeError("Could not parse '" + shardIndex + "' as shard index");
                }
                if (parsedIndex < 0) {
                    return ParserResult::runtimeError("Shard index must be a non-negative number");
                }

                config.shardIndex = static_cast<unsigned int>(parsedIndex);
                return ParserResult::ok(ParseResultType::Matched);
            } CATCH_CATCH_ANON(std::exception const&) {
                return ParserResult::runtimeError("Could not parse '" + shardIndex + "' as shard index");
            }
        };


        auto cli
                = ExeName(config.processName)
                  | Help(config.showHelp)
                  | Opt(config.showSuccessfulTests)
                  ["-s"]["--success"]
                          ("include successful tests in output")
                  | Opt(config.shouldDebugBreak)
                  ["-b"]["--break"]
                          ("break into debugger on failure")
                  | Opt(config.noThrow)
                  ["-e"]["--nothrow"]
                          ("skip exception tests")
                  | Opt(config.showInvisibles)
                  ["-i"]["--invisibles"]
                          ("show invisibles (tabs, newlines)")
                  | Opt(config.defaultOutputFilename, "filename")
                  ["-o"]["--out"]
                          ("default output filename")
                  | Opt(accept_many, setReporter, "name[::key=value]*")
                  ["-r"]["--reporter"]
                          ("reporter to use (defaults to console)")
                  | Opt(config.name, "name")
                  ["-n"]["--name"]
                          ("suite name")
                  | Opt([&](bool) { config.abortAfter = 1; })
                  ["-a"]["--abort"]
                          ("abort at first failure")
                  | Opt([&](int x) { config.abortAfter = x; }, "no. failures")
                  ["-x"]["--abortx"]
                          ("abort after x failures")
                  | Opt(accept_many, setWarning, "warning name")
                  ["-w"]["--warn"]
                          ("enable warnings")
                  | Opt([&](bool flag) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; },
                        "yes|no")
                  ["-d"]["--durations"]
                          ("show test durations")
                  | Opt(config.minDuration, "seconds")
                  ["-D"]["--min-duration"]
                          ("show test durations for tests taking at least the given number of seconds")
                  | Opt(loadTestNamesFromFile, "filename")
                  ["-f"]["--input-file"]
                          ("load test names to run from a file")
                  | Opt(config.filenamesAsTags)
                  ["-#"]["--filenames-as-tags"]
                          ("adds a tag for the filename")
                  | Opt(config.sectionsToRun, "section name")
                  ["-c"]["--section"]
                          ("specify section to run")
                  | Opt(setVerbosity, "quiet|normal|high")
                  ["-v"]["--verbosity"]
                          ("set output verbosity")
                  | Opt(config.listTests)
                  ["--list-tests"]
                          ("list all/matching test cases")
                  | Opt(config.listTags)
                  ["--list-tags"]
                          ("list all/matching tags")
                  | Opt(config.listReporters)
                  ["--list-reporters"]
                          ("list all available reporters")
                  | Opt(config.listListeners)
                  ["--list-listeners"]
                          ("list all listeners")
                  | Opt(setTestOrder, "decl|lex|rand")
                  ["--order"]
                          ("test case order (defaults to decl)")
                  | Opt(setRngSeed, "'time'|'random-device'|number")
                  ["--rng-seed"]
                          ("set a specific seed for random numbers")
                  | Opt(setDefaultColourMode, "ansi|win32|none|default")
                  ["--colour-mode"]
                          ("what color mode should be used as default")
                  | Opt(config.libIdentify)
                  ["--libidentify"]
                          ("report name and version according to libidentify standard")
                  | Opt(setWaitForKeypress, "never|start|exit|both")
                  ["--wait-for-keypress"]
                          ("waits for a keypress before exiting")
                  | Opt(config.skipBenchmarks)
                  ["--skip-benchmarks"]
                          ("disable running benchmarks")
                  | Opt(config.benchmarkSamples, "samples")
                  ["--benchmark-samples"]
                          ("number of samples to collect (default: 100)")
                  | Opt(config.benchmarkResamples, "resamples")
                  ["--benchmark-resamples"]
                          ("number of resamples for the bootstrap (default: 100000)")
                  | Opt(config.benchmarkConfidenceInterval, "confidence interval")
                  ["--benchmark-confidence-interval"]
                          ("confidence interval for the bootstrap (between 0 and 1, default: 0.95)")
                  | Opt(config.benchmarkNoAnalysis)
                  ["--benchmark-no-analysis"]
                          ("perform only measurements; do not perform any analysis")
                  | Opt(config.benchmarkWarmupTime, "benchmarkWarmupTime")
                  ["--benchmark-warmup-time"]
                          ("amount of time in milliseconds spent on warming up each test (default: 100)")
                  | Opt(setShardCount, "shard count")
                  ["--shard-count"]
                          ("split the tests to execute into this many groups")
                  | Opt(setShardIndex, "shard index")
                  ["--shard-index"]
                          ("index of the group of tests to execute (see --shard-count)") |
                  Opt(config.allowZeroTests)
                  ["--allow-running-no-tests"]
                          ("Treat 'No tests run' as a success")
                  | Arg(config.testsOrTags, "test name|pattern|tags")
                          ("which test or tests to use");

        return cli;
    }

} // end namespace Catch


#if defined(__clang__)
                                                                                                                        #    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif


#include <cassert>
#include <ostream>
#include <utility>

namespace Catch {

    ColourImpl::~ColourImpl() = default;

    ColourImpl::ColourGuard ColourImpl::guardColour(Colour::Code colourCode) {
        return ColourGuard(colourCode, this);
    }

    void ColourImpl::ColourGuard::engageImpl(std::ostream &stream) {
        assert(&stream == &m_colourImpl->m_stream->stream() &&
               "Engaging colour guard for different stream than used by the "
               "parent colour implementation");
        static_cast<void>( stream );

        m_engaged = true;
        m_colourImpl->use(m_code);
    }

    ColourImpl::ColourGuard::ColourGuard(Colour::Code code,
                                         ColourImpl const *colour) :
            m_colourImpl(colour), m_code(code) {
    }

    ColourImpl::ColourGuard::ColourGuard(ColourGuard &&rhs) noexcept:
            m_colourImpl(rhs.m_colourImpl),
            m_code(rhs.m_code),
            m_engaged(rhs.m_engaged) {
        rhs.m_engaged = false;
    }

    ColourImpl::ColourGuard &
    ColourImpl::ColourGuard::operator=(ColourGuard &&rhs) noexcept {
        using std::swap;
        swap(m_colourImpl, rhs.m_colourImpl);
        swap(m_code, rhs.m_code);
        swap(m_engaged, rhs.m_engaged);

        return *this;
    }

    ColourImpl::ColourGuard::~ColourGuard() {
        if (m_engaged) {
            m_colourImpl->use(Colour::None);
        }
    }

    ColourImpl::ColourGuard &
    ColourImpl::ColourGuard::engage(std::ostream &stream) &{
        engageImpl(stream);
        return *this;
    }

    ColourImpl::ColourGuard &&
    ColourImpl::ColourGuard::engage(std::ostream &stream) &&{
        engageImpl(stream);
        return CATCH_MOVE(*this);
    }

    namespace {
        //! A do-nothing implementation of colour, used as fallback for unknown
        //! platforms, and when the user asks to deactivate all colours.
        class NoColourImpl : public ColourImpl {
        public:
            NoColourImpl(IStream *stream) : ColourImpl(stream) {}

        private:
            void use(Colour::Code) const override {}
        };
    } // namespace


} // namespace Catch


#if defined ( CATCH_CONFIG_COLOUR_WIN32 ) /////////////////////////////////////////

                                                                                                                        namespace Catch {
namespace {

    class Win32ColourImpl : public ColourImpl {
    public:
        Win32ColourImpl(IStream* stream):
            ColourImpl(stream) {
            CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
            GetConsoleScreenBufferInfo( GetStdHandle( STD_OUTPUT_HANDLE ),
                                        &csbiInfo );
            originalForegroundAttributes = csbiInfo.wAttributes & ~( BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY );
            originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
        }

        static bool useImplementationForStream(IStream const& stream) {
            // Win32 text colour APIs can only be used on console streams
            // We cannot check that the output hasn't been redirected,
            // so we just check that the original stream is console stream.
            return stream.isConsole();
        }

    private:
        void use( Colour::Code _colourCode ) const override {
            switch( _colourCode ) {
                case Colour::None:      return setTextAttribute( originalForegroundAttributes );
                case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
                case Colour::Red:       return setTextAttribute( FOREGROUND_RED );
                case Colour::Green:     return setTextAttribute( FOREGROUND_GREEN );
                case Colour::Blue:      return setTextAttribute( FOREGROUND_BLUE );
                case Colour::Cyan:      return setTextAttribute( FOREGROUND_BLUE | FOREGROUND_GREEN );
                case Colour::Yellow:    return setTextAttribute( FOREGROUND_RED | FOREGROUND_GREEN );
                case Colour::Grey:      return setTextAttribute( 0 );

                case Colour::LightGrey:     return setTextAttribute( FOREGROUND_INTENSITY );
                case Colour::BrightRed:     return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED );
                case Colour::BrightGreen:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN );
                case Colour::BrightWhite:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
                case Colour::BrightYellow:  return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN );

                case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );

                default:
                    CATCH_ERROR( "Unknown colour requested" );
            }
        }

        void setTextAttribute( WORD _textAttribute ) const {
            SetConsoleTextAttribute( GetStdHandle( STD_OUTPUT_HANDLE ),
                                     _textAttribute |
                                         originalBackgroundAttributes );
        }
        WORD originalForegroundAttributes;
        WORD originalBackgroundAttributes;
    };

} // end anon namespace
} // end namespace Catch

#endif // Windows/ ANSI/ None


#if defined( CATCH_PLATFORM_LINUX ) || defined( CATCH_PLATFORM_MAC )
#    define CATCH_INTERNAL_HAS_ISATTY

#    include <unistd.h>

#endif

namespace Catch {
    namespace {

        class ANSIColourImpl : public ColourImpl {
        public:
            ANSIColourImpl(IStream *stream) : ColourImpl(stream) {}

            static bool useImplementationForStream(IStream const &stream) {
                // This is kinda messy due to trying to support a bunch of
                // different platforms at once.
                // The basic idea is that if we are asked to do autodetection (as
                // opposed to being told to use posixy colours outright), then we
                // only want to use the colours if we are writing to console.
                // However, console might be redirected, so we make an attempt at
                // checking for that on platforms where we know how to do that.
                bool useColour = stream.isConsole();
#if defined( CATCH_INTERNAL_HAS_ISATTY ) && \
    !(defined( __DJGPP__ ) && defined( __STRICT_ANSI__ ))
                ErrnoGuard _; // for isatty
                useColour = useColour && isatty(STDOUT_FILENO);
#    endif
#    if defined( CATCH_PLATFORM_MAC ) || defined( CATCH_PLATFORM_IPHONE )
                useColour = useColour && !isDebuggerActive();
#    endif

                return useColour;
            }

        private:
            void use(Colour::Code _colourCode) const override {
                auto setColour = [&out =
                m_stream->stream()](char const *escapeCode) {
                    // The escape sequence must be flushed to console, otherwise
                    // if stdin and stderr are intermixed, we'd get accidentally
                    // coloured output.
                    out << '\033' << escapeCode << std::flush;
                };
                switch (_colourCode) {
                    case Colour::None:
                    case Colour::White: return setColour("[0m");
                    case Colour::Red: return setColour("[0;31m");
                    case Colour::Green: return setColour("[0;32m");
                    case Colour::Blue: return setColour("[0;34m");
                    case Colour::Cyan: return setColour("[0;36m");
                    case Colour::Yellow: return setColour("[0;33m");
                    case Colour::Grey: return setColour("[1;30m");

                    case Colour::LightGrey: return setColour("[0;37m");
                    case Colour::BrightRed: return setColour("[1;31m");
                    case Colour::BrightGreen: return setColour("[1;32m");
                    case Colour::BrightWhite: return setColour("[1;37m");
                    case Colour::BrightYellow: return setColour("[1;33m");

                    case Colour::Bright: CATCH_INTERNAL_ERROR("not a colour");
                    default: CATCH_INTERNAL_ERROR("Unknown colour requested");
                }
            }
        };

    } // end anon namespace
} // end namespace Catch

namespace Catch {

    Detail::unique_ptr<ColourImpl> makeColourImpl(ColourMode implSelection,
                                                  IStream *stream) {
#if defined( CATCH_CONFIG_COLOUR_WIN32 )
                                                                                                                                if ( implSelection == ColourMode::Win32 ) {
            return Detail::make_unique<Win32ColourImpl>( stream );
        }
#endif
        if (implSelection == ColourMode::ANSI) {
            return Detail::make_unique<ANSIColourImpl>(stream);
        }
        if (implSelection == ColourMode::None) {
            return Detail::make_unique<NoColourImpl>(stream);
        }

        if (implSelection == ColourMode::PlatformDefault) {
#if defined( CATCH_CONFIG_COLOUR_WIN32 )
                                                                                                                                    if ( Win32ColourImpl::useImplementationForStream( *stream ) ) {
                return Detail::make_unique<Win32ColourImpl>( stream );
            }
#endif
            if (ANSIColourImpl::useImplementationForStream(*stream)) {
                return Detail::make_unique<ANSIColourImpl>(stream);
            }
            return Detail::make_unique<NoColourImpl>(stream);
        }

        CATCH_ERROR("Could not create colour impl for selection " << static_cast<int>(implSelection));
    }

    bool isColourImplAvailable(ColourMode colourSelection) {
        switch (colourSelection) {
#if defined( CATCH_CONFIG_COLOUR_WIN32 )
            case ColourMode::Win32:
#endif
            case ColourMode::ANSI:
            case ColourMode::None:
            case ColourMode::PlatformDefault:return true;
            default:return false;
        }
    }


} // end namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif


namespace Catch {

    class Context : public IMutableContext, private Detail::NonCopyable {

    public: // IContext
        IResultCapture *getResultCapture() override {
            return m_resultCapture;
        }

        IConfig const *getConfig() const override {
            return m_config;
        }

        ~Context() override;

    public: // IMutableContext
        void setResultCapture(IResultCapture *resultCapture) override {
            m_resultCapture = resultCapture;
        }

        void setConfig(IConfig const *config) override {
            m_config = config;
        }

        friend IMutableContext &getCurrentMutableContext();

    private:
        IConfig const *m_config = nullptr;
        IResultCapture *m_resultCapture = nullptr;
    };

    IMutableContext *IMutableContext::currentContext = nullptr;

    void IMutableContext::createContext() {
        currentContext = new Context();
    }

    void cleanUpContext() {
        delete IMutableContext::currentContext;
        IMutableContext::currentContext = nullptr;
    }

    IContext::~IContext() = default;

    IMutableContext::~IMutableContext() = default;

    Context::~Context() = default;


    SimplePcg32 &sharedRng() {
        static SimplePcg32 s_rng;
        return s_rng;
    }

}


#include <ostream>

#if defined(CATCH_CONFIG_ANDROID_LOGWRITE)
                                                                                                                        #include <android/log.h>

    namespace Catch {
        void writeToDebugConsole( std::string const& text ) {
            __android_log_write( ANDROID_LOG_DEBUG, "Catch", text.c_str() );
        }
    }

#elif defined(CATCH_PLATFORM_WINDOWS)

                                                                                                                        namespace Catch {
        void writeToDebugConsole( std::string const& text ) {
            ::OutputDebugStringA( text.c_str() );
        }
    }

#else

namespace Catch {
    void writeToDebugConsole(std::string const &text) {
        // !TBD: Need a version for Mac/ XCode and other IDEs
        Catch::cout() << text;
    }
}

#endif // Platform


#if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)

                                                                                                                        #  include <cassert>
#  include <sys/types.h>
#  include <unistd.h>
#  include <cstddef>
#  include <ostream>

#ifdef __apple_build_version__
    // These headers will only compile with AppleClang (XCode)
    // For other compilers (Clang, GCC, ... ) we need to exclude them
#  include <sys/sysctl.h>
#endif

    namespace Catch {
        #ifdef __apple_build_version__
        // The following function is taken directly from the following technical note:
        // https://developer.apple.com/library/archive/qa/qa1361/_index.html

        // Returns true if the current process is being debugged (either
        // running under the debugger or has a debugger attached post facto).
        bool isDebuggerActive(){
            int                 mib[4];
            struct kinfo_proc   info;
            std::size_t         size;

            // Initialize the flags so that, if sysctl fails for some bizarre
            // reason, we get a predictable result.

            info.kp_proc.p_flag = 0;

            // Initialize mib, which tells sysctl the info we want, in this case
            // we're looking for information about a specific process ID.

            mib[0] = CTL_KERN;
            mib[1] = KERN_PROC;
            mib[2] = KERN_PROC_PID;
            mib[3] = getpid();

            // Call sysctl.

            size = sizeof(info);
            if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
                Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n\n" << std::flush;
                return false;
            }

            // We're being debugged if the P_TRACED flag is set.

            return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
        }
        #else
        bool isDebuggerActive() {
            // We need to find another way to determine this for non-appleclang compilers on macOS
            return false;
        }
        #endif
    } // namespace Catch

#elif defined(CATCH_PLATFORM_LINUX)

#include <fstream>
#include <string>

namespace Catch {
    // The standard POSIX way of detecting a debugger is to attempt to
    // ptrace() the process, but this needs to be done from a child and not
    // this process itself to still allow attaching to this process later
    // if wanted, so is rather heavy. Under Linux we have the PID of the
    // "debugger" (which doesn't need to be gdb, of course, it could also
    // be strace, for example) in /proc/$PID/status, so just get it from
    // there instead.
    bool isDebuggerActive() {
        // Libstdc++ has a bug, where std::ifstream sets errno to 0
        // This way our users can properly assert over errno values
        ErrnoGuard guard;
        std::ifstream in("/proc/self/status");
        for (std::string line; std::getline(in, line);) {
            static const int PREFIX_LEN = 11;
            if (line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0) {
                // We're traced if the PID is not 0 and no other PID starts
                // with 0 digit, so it's enough to check for just a single
                // character.
                return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
            }
        }

        return false;
    }
} // namespace Catch
#elif defined(_MSC_VER)
                                                                                                                        extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
    namespace Catch {
        bool isDebuggerActive() {
            return IsDebuggerPresent() != 0;
        }
    }
#elif defined(__MINGW32__)
    extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
    namespace Catch {
        bool isDebuggerActive() {
            return IsDebuggerPresent() != 0;
        }
    }
#else
    namespace Catch {
       bool isDebuggerActive() { return false; }
    }
#endif // Platform


namespace Catch {

    ITransientExpression::~ITransientExpression() = default;

    void formatReconstructedExpression(std::ostream &os, std::string const &lhs, StringRef op, std::string const &rhs) {
        if (lhs.size() + rhs.size() < 40 &&
            lhs.find('\n') == std::string::npos &&
            rhs.find('\n') == std::string::npos)
            os << lhs << ' ' << op << ' ' << rhs;
        else
            os << lhs << '\n' << op << '\n' << rhs;
    }
}


#include <stdexcept>


namespace Catch {
#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
                                                                                                                            [[noreturn]]
    void throw_exception(std::exception const& e) {
        Catch::cerr() << "Catch will terminate because it needed to throw an exception.\n"
                      << "The message was: " << e.what() << '\n';
        std::terminate();
    }
#endif

    [[noreturn]]
    void throw_logic_error(std::string const &msg) {
        throw_exception(std::logic_error(msg));
    }

    [[noreturn]]
    void throw_domain_error(std::string const &msg) {
        throw_exception(std::domain_error(msg));
    }

    [[noreturn]]
    void throw_runtime_error(std::string const &msg) {
        throw_exception(std::runtime_error(msg));
    }


} // namespace Catch;



#include <cassert>

namespace Catch {

    IMutableEnumValuesRegistry::~IMutableEnumValuesRegistry() = default;

    namespace Detail {

        namespace {
            // Extracts the actual name part of an enum instance
            // In other words, it returns the Blue part of Bikeshed::Colour::Blue
            StringRef extractInstanceName(StringRef enumInstance) {
                // Find last occurrence of ":"
                size_t name_start = enumInstance.size();
                while (name_start > 0 && enumInstance[name_start - 1] != ':') {
                    --name_start;
                }
                return enumInstance.substr(name_start, enumInstance.size() - name_start);
            }
        }

        std::vector<StringRef> parseEnums(StringRef enums) {
            auto enumValues = splitStringRef(enums, ',');
            std::vector<StringRef> parsed;
            parsed.reserve(enumValues.size());
            for (auto const &enumValue: enumValues) {
                parsed.push_back(trim(extractInstanceName(enumValue)));
            }
            return parsed;
        }

        EnumInfo::~EnumInfo() {}

        StringRef EnumInfo::lookup(int value) const {
            for (auto const &valueToName: m_values) {
                if (valueToName.first == value)
                    return valueToName.second;
            }
            return "{** unexpected enum value **}"_sr;
        }

        Catch::Detail::unique_ptr<EnumInfo>
        makeEnumInfo(StringRef enumName, StringRef allValueNames, std::vector<int> const &values) {
            auto enumInfo = Catch::Detail::make_unique<EnumInfo>();
            enumInfo->m_name = enumName;
            enumInfo->m_values.reserve(values.size());

            const auto valueNames = Catch::Detail::parseEnums(allValueNames);
            assert(valueNames.size() == values.size());
            std::size_t i = 0;
            for (auto value: values)
                enumInfo->m_values.emplace_back(value, valueNames[i++]);

            return enumInfo;
        }

        EnumInfo const &
        EnumValuesRegistry::registerEnum(StringRef enumName, StringRef allValueNames, std::vector<int> const &values) {
            m_enumInfos.push_back(makeEnumInfo(enumName, allValueNames, values));
            return *m_enumInfos.back();
        }

    } // Detail
} // Catch





#include <cerrno>

namespace Catch {
    ErrnoGuard::ErrnoGuard() : m_oldErrno(errno) {}

    ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
}


namespace Catch {

    ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
    }

    void ExceptionTranslatorRegistry::registerTranslator(Detail::unique_ptr<IExceptionTranslator> &&translator) {
        m_translators.push_back(CATCH_MOVE(translator));
    }

#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)

    std::string ExceptionTranslatorRegistry::translateActiveException() const {
        // Compiling a mixed mode project with MSVC means that CLR
        // exceptions will be caught in (...) as well. However, these do
        // do not fill-in std::current_exception and thus lead to crash
        // when attempting rethrow.
        // /EHa switch also causes structured exceptions to be caught
        // here, but they fill-in current_exception properly, so
        // at worst the output should be a little weird, instead of
        // causing a crash.
        if (std::current_exception() == nullptr) {
            return "Non C++ exception. Possibly a CLR exception.";
        }

        // First we try user-registered translators. If none of them can
        // handle the exception, it will be rethrown handled by our defaults.
        try {
            return tryTranslators();
        }
            // To avoid having to handle TFE explicitly everywhere, we just
            // rethrow it so that it goes back up the caller.
        catch (TestFailureException &) {
            std::rethrow_exception(std::current_exception());
        }
        catch (std::exception const &ex) {
            return ex.what();
        }
        catch (std::string const &msg) {
            return msg;
        }
        catch (const char *msg) {
            return msg;
        }
        catch (...) {
            return "Unknown exception";
        }
    }

    std::string ExceptionTranslatorRegistry::tryTranslators() const {
        if (m_translators.empty()) {
            std::rethrow_exception(std::current_exception());
        }
        else {
            return m_translators[0]->translate(m_translators.begin() + 1, m_translators.end());
        }
    }

#else // ^^ Exceptions are enabled // Exceptions are disabled vv
                                                                                                                            std::string ExceptionTranslatorRegistry::translateActiveException() const {
        CATCH_INTERNAL_ERROR("Attempted to translate active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
    }

    std::string ExceptionTranslatorRegistry::tryTranslators() const {
        CATCH_INTERNAL_ERROR("Attempted to use exception translators under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
    }
#endif


}



/** \file
 * This file provides platform specific implementations of FatalConditionHandler
 *
 * This means that there is a lot of conditional compilation, and platform
 * specific code. Currently, Catch2 supports a dummy handler (if no
 * handler is desired), and 2 platform specific handlers:
 *  * Windows' SEH
 *  * POSIX signals
 *
 * Consequently, various pieces of code below are compiled if either of
 * the platform specific handlers is enabled, or if none of them are
 * enabled. It is assumed that both cannot be enabled at the same time,
 * and doing so should cause a compilation error.
 *
 * If another platform specific handler is added, the compile guards
 * below will need to be updated taking these assumptions into account.
 */



#include <algorithm>

#if !defined( CATCH_CONFIG_WINDOWS_SEH ) && !defined( CATCH_CONFIG_POSIX_SIGNALS )

                                                                                                                        namespace Catch {

    // If neither SEH nor signal handling is required, the handler impls
    // do not have to do anything, and can be empty.
    void FatalConditionHandler::engage_platform() {}
    void FatalConditionHandler::disengage_platform() noexcept {}
    FatalConditionHandler::FatalConditionHandler() = default;
    FatalConditionHandler::~FatalConditionHandler() = default;

} // end namespace Catch

#endif // !CATCH_CONFIG_WINDOWS_SEH && !CATCH_CONFIG_POSIX_SIGNALS

#if defined( CATCH_CONFIG_WINDOWS_SEH ) && defined( CATCH_CONFIG_POSIX_SIGNALS )
#error "Inconsistent configuration: Windows' SEH handling and POSIX signals cannot be enabled at the same time"
#endif // CATCH_CONFIG_WINDOWS_SEH && CATCH_CONFIG_POSIX_SIGNALS

#if defined( CATCH_CONFIG_WINDOWS_SEH ) || defined( CATCH_CONFIG_POSIX_SIGNALS )

namespace {
    //! Signals fatal error message to the run context
    void reportFatal(char const *const message) {
        Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition(message);
    }

    //! Minimal size Catch2 needs for its own fatal error handling.
    //! Picked empirically, so it might not be sufficient on all
    //! platforms, and for all configurations.
    constexpr std::size_t minStackSizeForErrors = 32 * 1024;
} // end unnamed namespace

#endif // CATCH_CONFIG_WINDOWS_SEH || CATCH_CONFIG_POSIX_SIGNALS

#if defined( CATCH_CONFIG_WINDOWS_SEH )

                                                                                                                        namespace Catch {

    struct SignalDefs { DWORD id; const char* name; };

    // There is no 1-1 mapping between signals and windows exceptions.
    // Windows can easily distinguish between SO and SigSegV,
    // but SigInt, SigTerm, etc are handled differently.
    static SignalDefs signalDefs[] = {
        { EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
        { EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
        { EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
        { EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
    };

    static LONG CALLBACK topLevelExceptionFilter(PEXCEPTION_POINTERS ExceptionInfo) {
        for (auto const& def : signalDefs) {
            if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
                reportFatal(def.name);
            }
        }
        // If its not an exception we care about, pass it along.
        // This stops us from eating debugger breaks etc.
        return EXCEPTION_CONTINUE_SEARCH;
    }

    // Since we do not support multiple instantiations, we put these
    // into global variables and rely on cleaning them up in outlined
    // constructors/destructors
    static LPTOP_LEVEL_EXCEPTION_FILTER previousTopLevelExceptionFilter = nullptr;


    // For MSVC, we reserve part of the stack memory for handling
    // memory overflow structured exception.
    FatalConditionHandler::FatalConditionHandler() {
        ULONG guaranteeSize = static_cast<ULONG>(minStackSizeForErrors);
        if (!SetThreadStackGuarantee(&guaranteeSize)) {
            // We do not want to fully error out, because needing
            // the stack reserve should be rare enough anyway.
            Catch::cerr()
                << "Failed to reserve piece of stack."
                << " Stack overflows will not be reported successfully.";
        }
    }

    // We do not attempt to unset the stack guarantee, because
    // Windows does not support lowering the stack size guarantee.
    FatalConditionHandler::~FatalConditionHandler() = default;


    void FatalConditionHandler::engage_platform() {
        // Register as a the top level exception filter.
        previousTopLevelExceptionFilter = SetUnhandledExceptionFilter(topLevelExceptionFilter);
    }

    void FatalConditionHandler::disengage_platform() noexcept {
        if (SetUnhandledExceptionFilter(previousTopLevelExceptionFilter) != topLevelExceptionFilter) {
            Catch::cerr()
                << "Unexpected SEH unhandled exception filter on disengage."
                << " The filter was restored, but might be rolled back unexpectedly.";
        }
        previousTopLevelExceptionFilter = nullptr;
    }

} // end namespace Catch

#endif // CATCH_CONFIG_WINDOWS_SEH

#if defined( CATCH_CONFIG_POSIX_SIGNALS )

#include <signal.h>

namespace Catch {

    struct SignalDefs {
        int id;
        const char *name;
    };

    static SignalDefs signalDefs[] = {
            {SIGINT,  "SIGINT - Terminal interrupt signal"},
            {SIGILL,  "SIGILL - Illegal instruction signal"},
            {SIGFPE,  "SIGFPE - Floating point error signal"},
            {SIGSEGV, "SIGSEGV - Segmentation violation signal"},
            {SIGTERM, "SIGTERM - Termination request signal"},
            {SIGABRT, "SIGABRT - Abort (abnormal termination) signal"}
    };

// Older GCCs trigger -Wmissing-field-initializers for T foo = {}
// which is zero initialization, but not explicit. We want to avoid
// that.
#if defined(__GNUC__)
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#endif

    static char *altStackMem = nullptr;
    static std::size_t altStackSize = 0;
    static stack_t oldSigStack{};
    static struct sigaction oldSigActions[sizeof(signalDefs) / sizeof(SignalDefs)]{};

    static void restorePreviousSignalHandlers() noexcept {
        // We set signal handlers back to the previous ones. Hopefully
        // nobody overwrote them in the meantime, and doesn't expect
        // their signal handlers to live past ours given that they
        // installed them after ours..
        for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
            sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
        }
        // Return the old stack
        sigaltstack(&oldSigStack, nullptr);
    }

    static void handleSignal(int sig) {
        char const *name = "<unknown signal>";
        for (auto const &def: signalDefs) {
            if (sig == def.id) {
                name = def.name;
                break;
            }
        }
        // We need to restore previous signal handlers and let them do
        // their thing, so that the users can have the debugger break
        // when a signal is raised, and so on.
        restorePreviousSignalHandlers();
        reportFatal(name);
        raise(sig);
    }

    FatalConditionHandler::FatalConditionHandler() {
        assert(!altStackMem && "Cannot initialize POSIX signal handler when one already exists");
        if (altStackSize == 0) {
            altStackSize = std::max(static_cast<size_t>(SIGSTKSZ), minStackSizeForErrors);
        }
        altStackMem = new char[altStackSize]();
    }

    FatalConditionHandler::~FatalConditionHandler() {
        delete[] altStackMem;
        // We signal that another instance can be constructed by zeroing
        // out the pointer.
        altStackMem = nullptr;
    }

    void FatalConditionHandler::engage_platform() {
        stack_t sigStack;
        sigStack.ss_sp = altStackMem;
        sigStack.ss_size = altStackSize;
        sigStack.ss_flags = 0;
        sigaltstack(&sigStack, &oldSigStack);
        struct sigaction sa = {};

        sa.sa_handler = handleSignal;
        sa.sa_flags = SA_ONSTACK;
        for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
            sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
        }
    }

#if defined(__GNUC__)
#    pragma GCC diagnostic pop
#endif


    void FatalConditionHandler::disengage_platform() noexcept {
        restorePreviousSignalHandlers();
    }

} // end namespace Catch

#endif // CATCH_CONFIG_POSIX_SIGNALS


#include <cstring>

namespace Catch {
    namespace Detail {

        uint32_t convertToBits(float f) {
            static_assert(sizeof(float) == sizeof(uint32_t), "Important ULP matcher assumption violated");
            uint32_t i;
            std::memcpy(&i, &f, sizeof(f));
            return i;
        }

        uint64_t convertToBits(double d) {
            static_assert(sizeof(double) == sizeof(uint64_t), "Important ULP matcher assumption violated");
            uint64_t i;
            std::memcpy(&i, &d, sizeof(d));
            return i;
        }

    } // end namespace Detail
} // end namespace Catch





#include <cstdio>
#include <fstream>
#include <sstream>
#include <vector>

namespace Catch {

    Catch::IStream::~IStream() = default;

    namespace Detail {
        namespace {
            template<typename WriterF, std::size_t bufferSize = 256>
            class StreamBufImpl : public std::streambuf {
                char data[bufferSize];
                WriterF m_writer;

            public:
                StreamBufImpl() {
                    setp(data, data + sizeof(data));
                }

                ~StreamBufImpl() noexcept override {
                    StreamBufImpl::sync();
                }

            private:
                int overflow(int c) override {
                    sync();

                    if (c != EOF) {
                        if (pbase() == epptr())
                            m_writer(std::string(1, static_cast<char>( c )));
                        else
                            sputc(static_cast<char>( c ));
                    }
                    return 0;
                }

                int sync() override {
                    if (pbase() != pptr()) {
                        m_writer(std::string(pbase(), static_cast<std::string::size_type>( pptr() - pbase())));
                        setp(pbase(), epptr());
                    }
                    return 0;
                }
            };

            ///////////////////////////////////////////////////////////////////////////

            struct OutputDebugWriter {

                void operator()(std::string const &str) {
                    if (!str.empty()) {
                        writeToDebugConsole(str);
                    }
                }
            };

            ///////////////////////////////////////////////////////////////////////////

            class FileStream : public IStream {
                std::ofstream m_ofs;
            public:
                FileStream(std::string const &filename) {
                    m_ofs.open(filename.c_str());
                    CATCH_ENFORCE(!m_ofs.fail(), "Unable to open file: '" << filename << '\'');
                }

                ~FileStream() override = default;

            public: // IStream
                std::ostream &stream() override {
                    return m_ofs;
                }
            };

            ///////////////////////////////////////////////////////////////////////////

            class CoutStream : public IStream {
                std::ostream m_os;
            public:
                // Store the streambuf from cout up-front because
                // cout may get redirected when running tests
                CoutStream() : m_os(Catch::cout().rdbuf()) {}

                ~CoutStream() override = default;

            public: // IStream
                std::ostream &stream() override { return m_os; }

                bool isConsole() const override { return true; }
            };

            class CerrStream : public IStream {
                std::ostream m_os;

            public:
                // Store the streambuf from cerr up-front because
                // cout may get redirected when running tests
                CerrStream() : m_os(Catch::cerr().rdbuf()) {}

                ~CerrStream() override = default;

            public: // IStream
                std::ostream &stream() override { return m_os; }

                bool isConsole() const override { return true; }
            };

            ///////////////////////////////////////////////////////////////////////////

            class DebugOutStream : public IStream {
                Detail::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
                std::ostream m_os;
            public:
                DebugOutStream()
                        : m_streamBuf(Detail::make_unique<StreamBufImpl<OutputDebugWriter>>()),
                          m_os(m_streamBuf.get()) {}

                ~DebugOutStream() override = default;

            public: // IStream
                std::ostream &stream() override { return m_os; }
            };

        } // unnamed namespace
    } // namespace Detail

    ///////////////////////////////////////////////////////////////////////////

    auto makeStream(std::string const &filename) -> Detail::unique_ptr<IStream> {
        if (filename.empty() || filename == "-") {
            return Detail::make_unique<Detail::CoutStream>();
        }
        if (filename[0] == '%') {
            if (filename == "%debug") {
                return Detail::make_unique<Detail::DebugOutStream>();
            }
            else if (filename == "%stderr") {
                return Detail::make_unique<Detail::CerrStream>();
            }
            else if (filename == "%stdout") {
                return Detail::make_unique<Detail::CoutStream>();
            }
            else {
                CATCH_ERROR("Unrecognised stream: '" << filename << '\'');
            }
        }
        return Detail::make_unique<Detail::FileStream>(filename);
    }

}


namespace Catch {

    auto operator<<(std::ostream &os, LazyExpression const &lazyExpr) -> std::ostream & {
        if (lazyExpr.m_isNegated)
            os << '!';

        if (lazyExpr) {
            if (lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression())
                os << '(' << *lazyExpr.m_transientExpression << ')';
            else
                os << *lazyExpr.m_transientExpression;
        }
        else {
            os << "{** error - unchecked empty expression requested **}";
        }
        return os;
    }

} // namespace Catch




#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
                                                                                                                        #include <crtdbg.h>

namespace Catch {

    LeakDetector::LeakDetector() {
        int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
        flag |= _CRTDBG_LEAK_CHECK_DF;
        flag |= _CRTDBG_ALLOC_MEM_DF;
        _CrtSetDbgFlag(flag);
        _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
        _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
        // Change this to leaking allocation's number to break there
        _CrtSetBreakAlloc(-1);
    }
}

#else // ^^ Windows crt debug heap enabled // Windows crt debug heap disabled vv

Catch::LeakDetector::LeakDetector() {}

#endif // CATCH_CONFIG_WINDOWS_CRTDBG

Catch::LeakDetector::~LeakDetector() {
    Catch::cleanUp();
}


namespace Catch {
    namespace {

        void listTests(IEventListener &reporter, IConfig const &config) {
            auto const &testSpec = config.testSpec();
            auto matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);
            reporter.listTests(matchedTestCases);
        }

        void listTags(IEventListener &reporter, IConfig const &config) {
            auto const &testSpec = config.testSpec();
            std::vector<TestCaseHandle> matchedTestCases = filterTests(getAllTestCasesSorted(config), testSpec, config);

            std::map<StringRef, TagInfo, Detail::CaseInsensitiveLess> tagCounts;
            for (auto const &testCase: matchedTestCases) {
                for (auto const &tagName: testCase.getTestCaseInfo().tags) {
                    auto it = tagCounts.find(tagName.original);
                    if (it == tagCounts.end())
                        it = tagCounts.insert(std::make_pair(tagName.original, TagInfo())).first;
                    it->second.add(tagName.original);
                }
            }

            std::vector<TagInfo> infos;
            infos.reserve(tagCounts.size());
            for (auto &tagc: tagCounts) {
                infos.push_back(CATCH_MOVE(tagc.second));
            }

            reporter.listTags(infos);
        }

        void listReporters(IEventListener &reporter) {
            std::vector<ReporterDescription> descriptions;

            IReporterRegistry::FactoryMap const &factories = getRegistryHub().getReporterRegistry().getFactories();
            descriptions.reserve(factories.size());
            for (auto const &fac: factories) {
                descriptions.push_back({fac.first, fac.second->getDescription()});
            }

            reporter.listReporters(descriptions);
        }

        void listListeners(IEventListener &reporter) {
            std::vector<ListenerDescription> descriptions;

            auto const &factories =
                    getRegistryHub().getReporterRegistry().getListeners();
            descriptions.reserve(factories.size());
            for (auto const &fac: factories) {
                descriptions.push_back({fac->getName(), fac->getDescription()});
            }

            reporter.listListeners(descriptions);
        }

    } // end anonymous namespace

    void TagInfo::add(StringRef spelling) {
        ++count;
        spellings.insert(spelling);
    }

    std::string TagInfo::all() const {
        // 2 per tag for brackets '[' and ']'
        size_t size = spellings.size() * 2;
        for (auto const &spelling: spellings) {
            size += spelling.size();
        }

        std::string out;
        out.reserve(size);
        for (auto const &spelling: spellings) {
            out += '[';
            out += spelling;
            out += ']';
        }
        return out;
    }

    bool list(IEventListener &reporter, Config const &config) {
        bool listed = false;
        if (config.listTests()) {
            listed = true;
            listTests(reporter, config);
        }
        if (config.listTags()) {
            listed = true;
            listTags(reporter, config);
        }
        if (config.listReporters()) {
            listed = true;
            listReporters(reporter);
        }
        if (config.listListeners()) {
            listed = true;
            listListeners(reporter);
        }
        return listed;
    }

} // end namespace Catch



namespace Catch {
    CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
    static LeakDetector leakDetector;
    CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
}

// Allow users of amalgamated .cpp file to remove our main and provide their own.
#if !defined(CATCH_AMALGAMATED_CUSTOM_MAIN)

#if defined(CATCH_CONFIG_WCHAR) && defined(CATCH_PLATFORM_WINDOWS) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
                                                                                                                        // Standard C/C++ Win32 Unicode wmain entry point
extern "C" int __cdecl wmain (int argc, wchar_t * argv[], wchar_t * []) {
#else

// Standard C/C++ main entry point
int main(int argc, char *argv[]) {
#endif

    // We want to force the linker not to discard the global variable
    // and its constructor, as it (optionally) registers leak detector
    (void) &Catch::leakDetector;

    return Catch::Session().run(argc, argv);
}

#endif // !defined(CATCH_AMALGAMATED_CUSTOM_MAIN


namespace Catch {

    MessageInfo::MessageInfo(StringRef _macroName,
                             SourceLineInfo const &_lineInfo,
                             ResultWas::OfType _type)
            : macroName(_macroName),
              lineInfo(_lineInfo),
              type(_type),
              sequence(++globalCount) {}

    // This may need protecting if threading support is added
    unsigned int MessageInfo::globalCount = 0;

} // end namespace Catch



#include <cstdio>
#include <cstring>
#include <sstream>

#if defined(CATCH_CONFIG_NEW_CAPTURE)
                                                                                                                        #if defined(_MSC_VER)
    #include <io.h>      //_dup and _dup2
    #define dup _dup
    #define dup2 _dup2
    #define fileno _fileno
    #else
    #include <unistd.h>  // dup and dup2
    #endif
#endif


namespace Catch {

    RedirectedStream::RedirectedStream(std::ostream &originalStream, std::ostream &redirectionStream)
            : m_originalStream(originalStream),
              m_redirectionStream(redirectionStream),
              m_prevBuf(m_originalStream.rdbuf()) {
        m_originalStream.rdbuf(m_redirectionStream.rdbuf());
    }

    RedirectedStream::~RedirectedStream() {
        m_originalStream.rdbuf(m_prevBuf);
    }

    RedirectedStdOut::RedirectedStdOut() : m_cout(Catch::cout(), m_rss.get()) {}

    auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }

    RedirectedStdErr::RedirectedStdErr()
            : m_cerr(Catch::cerr(), m_rss.get()),
              m_clog(Catch::clog(), m_rss.get()) {}

    auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }

    RedirectedStreams::RedirectedStreams(std::string &redirectedCout, std::string &redirectedCerr)
            : m_redirectedCout(redirectedCout),
              m_redirectedCerr(redirectedCerr) {}

    RedirectedStreams::~RedirectedStreams() {
        m_redirectedCout += m_redirectedStdOut.str();
        m_redirectedCerr += m_redirectedStdErr.str();
    }

#if defined(CATCH_CONFIG_NEW_CAPTURE)

                                                                                                                            #if defined(_MSC_VER)
    TempFile::TempFile() {
        if (tmpnam_s(m_buffer)) {
            CATCH_RUNTIME_ERROR("Could not get a temp filename");
        }
        if (fopen_s(&m_file, m_buffer, "w+")) {
            char buffer[100];
            if (strerror_s(buffer, errno)) {
                CATCH_RUNTIME_ERROR("Could not translate errno to a string");
            }
            CATCH_RUNTIME_ERROR("Could not open the temp file: '" << m_buffer << "' because: " << buffer);
        }
    }
#else
    TempFile::TempFile() {
        m_file = std::tmpfile();
        if (!m_file) {
            CATCH_RUNTIME_ERROR("Could not create a temp file.");
        }
    }

#endif

    TempFile::~TempFile() {
         // TBD: What to do about errors here?
         std::fclose(m_file);
         // We manually create the file on Windows only, on Linux
         // it will be autodeleted
#if defined(_MSC_VER)
         std::remove(m_buffer);
#endif
    }


    FILE* TempFile::getFile() {
        return m_file;
    }

    std::string TempFile::getContents() {
        std::stringstream sstr;
        char buffer[100] = {};
        std::rewind(m_file);
        while (std::fgets(buffer, sizeof(buffer), m_file)) {
            sstr << buffer;
        }
        return sstr.str();
    }

    OutputRedirect::OutputRedirect(std::string& stdout_dest, std::string& stderr_dest) :
        m_originalStdout(dup(1)),
        m_originalStderr(dup(2)),
        m_stdoutDest(stdout_dest),
        m_stderrDest(stderr_dest) {
        dup2(fileno(m_stdoutFile.getFile()), 1);
        dup2(fileno(m_stderrFile.getFile()), 2);
    }

    OutputRedirect::~OutputRedirect() {
        Catch::cout() << std::flush;
        fflush(stdout);
        // Since we support overriding these streams, we flush cerr
        // even though std::cerr is unbuffered
        Catch::cerr() << std::flush;
        Catch::clog() << std::flush;
        fflush(stderr);

        dup2(m_originalStdout, 1);
        dup2(m_originalStderr, 2);

        m_stdoutDest += m_stdoutFile.getContents();
        m_stderrDest += m_stderrFile.getContents();
    }

#endif // CATCH_CONFIG_NEW_CAPTURE

} // namespace Catch

#if defined(CATCH_CONFIG_NEW_CAPTURE)
                                                                                                                        #if defined(_MSC_VER)
    #undef dup
    #undef dup2
    #undef fileno
    #endif
#endif


#include <cmath>

namespace Catch {

#if !defined(CATCH_CONFIG_POLYFILL_ISNAN)

    bool isnan(float f) {
        return std::isnan(f);
    }

    bool isnan(double d) {
        return std::isnan(d);
    }

#else
                                                                                                                            // For now we only use this for embarcadero
    bool isnan(float f) {
        return std::_isnan(f);
    }
    bool isnan(double d) {
        return std::_isnan(d);
    }
#endif

} // end namespace Catch



namespace Catch {

    namespace {

#if defined(_MSC_VER)
                                                                                                                                #pragma warning(push)
#pragma warning(disable:4146) // we negate uint32 during the rotate
#endif

        // Safe rotr implementation thanks to John Regehr
        uint32_t rotate_right(uint32_t val, uint32_t count) {
            const uint32_t mask = 31;
            count &= mask;
            return (val >> count) | (val << (-count & mask));
        }

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

    }


    SimplePcg32::SimplePcg32(result_type seed_) {
        seed(seed_);
    }


    void SimplePcg32::seed(result_type seed_) {
        m_state = 0;
        (*this)();
        m_state += seed_;
        (*this)();
    }

    void SimplePcg32::discard(uint64_t skip) {
        // We could implement this to run in O(log n) steps, but this
        // should suffice for our use case.
        for (uint64_t s = 0; s < skip; ++s) {
            static_cast<void>((*this)());
        }
    }

    SimplePcg32::result_type SimplePcg32::operator()() {
        // prepare the output value
        const uint32_t xorshifted = static_cast<uint32_t>(((m_state >> 18u) ^ m_state) >> 27u);
        const auto output = rotate_right(xorshifted, m_state >> 59u);

        // advance state
        m_state = m_state * 6364136223846793005ULL + s_inc;

        return output;
    }

    bool operator==(SimplePcg32 const &lhs, SimplePcg32 const &rhs) {
        return lhs.m_state == rhs.m_state;
    }

    bool operator!=(SimplePcg32 const &lhs, SimplePcg32 const &rhs) {
        return lhs.m_state != rhs.m_state;
    }
}


#include <ctime>
#include <random>

namespace Catch {

    std::uint32_t generateRandomSeed(GenerateFrom from) {
        switch (from) {
            case GenerateFrom::Time:return static_cast<std::uint32_t>( std::time(nullptr));

            case GenerateFrom::Default:
            case GenerateFrom::RandomDevice:
                // In theory, a platform could have random_device that returns just
                // 16 bits. That is still some randomness, so we don't care too much
                return static_cast<std::uint32_t>( std::random_device{}());

            default:CATCH_ERROR("Unknown generation method");
        }
    }

} // end namespace Catch




namespace Catch {

    ReporterRegistry::ReporterRegistry() {
        // Because it is impossible to move out of initializer list,
        // we have to add the elements manually
        m_factories["Automake"] = Detail::make_unique<ReporterFactory<AutomakeReporter>>();
        m_factories["compact"] = Detail::make_unique<ReporterFactory<CompactReporter>>();
        m_factories["console"] = Detail::make_unique<ReporterFactory<ConsoleReporter>>();
        m_factories["JUnit"] = Detail::make_unique<ReporterFactory<JunitReporter>>();
        m_factories["SonarQube"] = Detail::make_unique<ReporterFactory<SonarQubeReporter>>();
        m_factories["TAP"] = Detail::make_unique<ReporterFactory<TAPReporter>>();
        m_factories["TeamCity"] = Detail::make_unique<ReporterFactory<TeamCityReporter>>();
        m_factories["XML"] = Detail::make_unique<ReporterFactory<XmlReporter>>();
    }

    ReporterRegistry::~ReporterRegistry() = default;


    IEventListenerPtr ReporterRegistry::create(std::string const &name, ReporterConfig &&config) const {
        auto it = m_factories.find(name);
        if (it == m_factories.end())
            return nullptr;
        return it->second->create(CATCH_MOVE(config));
    }

    void ReporterRegistry::registerReporter(std::string const &name, IReporterFactoryPtr factory) {
        CATCH_ENFORCE(name.find("::") == name.npos,
                      "'::' is not allowed in reporter name: '" + name + '\'');
        auto ret = m_factories.emplace(name, CATCH_MOVE(factory));
        CATCH_ENFORCE(ret.second, "reporter using '" + name + "' as name was already registered");
    }

    void ReporterRegistry::registerListener(
            Detail::unique_ptr<EventListenerFactory> factory) {
        m_listeners.push_back(CATCH_MOVE(factory));
    }

    IReporterRegistry::FactoryMap const &ReporterRegistry::getFactories() const {
        return m_factories;
    }

    IReporterRegistry::Listeners const &ReporterRegistry::getListeners() const {
        return m_listeners;
    }

}


#include <algorithm>

namespace Catch {

    namespace {
        struct kvPair {
            StringRef key, value;
        };

        kvPair splitKVPair(StringRef kvString) {
            auto splitPos = static_cast<size_t>( std::distance(
                    kvString.begin(),
                    std::find(kvString.begin(), kvString.end(), '=')));

            return {kvString.substr(0, splitPos),
                    kvString.substr(splitPos + 1, kvString.size())};
        }
    }

    namespace Detail {
        std::vector<std::string> splitReporterSpec(StringRef reporterSpec) {
            static constexpr auto separator = "::";
            static constexpr size_t separatorSize = 2;

            size_t separatorPos = 0;
            auto findNextSeparator = [&reporterSpec](size_t startPos) {
                static_assert(
                        separatorSize == 2,
                        "The code below currently assumes 2 char separator");

                auto currentPos = startPos;
                do {
                    while (currentPos < reporterSpec.size() &&
                           reporterSpec[currentPos] != separator[0]) {
                        ++currentPos;
                    }
                    if (currentPos + 1 < reporterSpec.size() &&
                        reporterSpec[currentPos + 1] == separator[1]) {
                        return currentPos;
                    }
                    ++currentPos;
                } while (currentPos < reporterSpec.size());

                return static_cast<size_t>( -1 );
            };

            std::vector<std::string> parts;

            while (separatorPos < reporterSpec.size()) {
                const auto nextSeparator = findNextSeparator(separatorPos);
                parts.push_back(static_cast<std::string>( reporterSpec.substr(
                        separatorPos, nextSeparator - separatorPos)));

                if (nextSeparator == static_cast<size_t>( -1 )) {
                    break;
                }
                separatorPos = nextSeparator + separatorSize;
            }

            // Handle a separator at the end.
            // This is not a valid spec, but we want to do validation in a
            // centralized place
            if (separatorPos == reporterSpec.size()) {
                parts.emplace_back();
            }

            return parts;
        }

        Optional<ColourMode> stringToColourMode(StringRef colourMode) {
            if (colourMode == "default") {
                return ColourMode::PlatformDefault;
            }
            else if (colourMode == "ansi") {
                return ColourMode::ANSI;
            }
            else if (colourMode == "win32") {
                return ColourMode::Win32;
            }
            else if (colourMode == "none") {
                return ColourMode::None;
            }
            else {
                return {};
            }
        }
    } // namespace Detail


    bool operator==(ReporterSpec const &lhs, ReporterSpec const &rhs) {
        return lhs.m_name == rhs.m_name &&
               lhs.m_outputFileName == rhs.m_outputFileName &&
               lhs.m_colourMode == rhs.m_colourMode &&
               lhs.m_customOptions == rhs.m_customOptions;
    }

    Optional<ReporterSpec> parseReporterSpec(StringRef reporterSpec) {
        auto parts = Detail::splitReporterSpec(reporterSpec);

        assert(parts.size() > 0 && "Split should never return empty vector");

        std::map<std::string, std::string> kvPairs;
        Optional<std::string> outputFileName;
        Optional<ColourMode> colourMode;

        // First part is always reporter name, so we skip it
        for (size_t i = 1; i < parts.size(); ++i) {
            auto kv = splitKVPair(parts[i]);
            auto key = kv.key, value = kv.value;

            if (key.empty() || value.empty()) {
                return {};
            }
            else if (key[0] == 'X') {
                // This is a reporter-specific option, we don't check these
                // apart from basic sanity checks
                if (key.size() == 1) {
                    return {};
                }

                auto ret = kvPairs.emplace(std::string(kv.key), std::string(kv.value));
                if (!ret.second) {
                    // Duplicated key. We might want to handle this differently,
                    // e.g. by overwriting the existing value?
                    return {};
                }
            }
            else if (key == "out") {
                // Duplicated key
                if (outputFileName) {
                    return {};
                }
                outputFileName = static_cast<std::string>( value );
            }
            else if (key == "colour-mode") {
                // Duplicated key
                if (colourMode) {
                    return {};
                }
                colourMode = Detail::stringToColourMode(value);
                // Parsing failed
                if (!colourMode) {
                    return {};
                }
            }
            else {
                // Unrecognized option
                return {};
            }
        }

        return ReporterSpec{CATCH_MOVE(parts[0]),
                            CATCH_MOVE(outputFileName),
                            CATCH_MOVE(colourMode),
                            CATCH_MOVE(kvPairs)};
    }

    ReporterSpec::ReporterSpec(
            std::string name,
            Optional<std::string> outputFileName,
            Optional<ColourMode> colourMode,
            std::map<std::string, std::string> customOptions) :
            m_name(CATCH_MOVE(name)),
            m_outputFileName(CATCH_MOVE(outputFileName)),
            m_colourMode(CATCH_MOVE(colourMode)),
            m_customOptions(CATCH_MOVE(customOptions)) {}

} // namespace Catch



namespace Catch {

    bool isOk(ResultWas::OfType resultType) {
        return (resultType & ResultWas::FailureBit) == 0;
    }

    bool isJustInfo(int flags) {
        return flags == ResultWas::Info;
    }

    ResultDisposition::Flags operator|(ResultDisposition::Flags lhs, ResultDisposition::Flags rhs) {
        return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ));
    }

    bool shouldContinueOnFailure(int flags) { return (flags & ResultDisposition::ContinueOnFailure) != 0; }

    bool shouldSuppressFailure(int flags) { return (flags & ResultDisposition::SuppressFail) != 0; }

} // end namespace Catch



#include <cstdio>
#include <sstream>
#include <vector>

namespace Catch {

    // This class encapsulates the idea of a pool of ostringstreams that can be reused.
    struct StringStreams {
        std::vector<Detail::unique_ptr<std::ostringstream>> m_streams;
        std::vector<std::size_t> m_unused;
        std::ostringstream m_referenceStream; // Used for copy state/ flags from

        auto add() -> std::size_t {
            if (m_unused.empty()) {
                m_streams.push_back(Detail::make_unique<std::ostringstream>());
                return m_streams.size() - 1;
            }
            else {
                auto index = m_unused.back();
                m_unused.pop_back();
                return index;
            }
        }

        void release(std::size_t index) {
            m_streams[index]->copyfmt(m_referenceStream); // Restore initial flags and other state
            m_unused.push_back(index);
        }
    };

    ReusableStringStream::ReusableStringStream()
            : m_index(Singleton<StringStreams>::getMutable().add()),
              m_oss(Singleton<StringStreams>::getMutable().m_streams[m_index].get()) {}

    ReusableStringStream::~ReusableStringStream() {
        static_cast<std::ostringstream *>( m_oss )->str("");
        m_oss->clear();
        Singleton<StringStreams>::getMutable().release(m_index);
    }

    std::string ReusableStringStream::str() const {
        return static_cast<std::ostringstream *>( m_oss )->str();
    }

    void ReusableStringStream::str(std::string const &str) {
        static_cast<std::ostringstream *>( m_oss )->str(str);
    }


}


#include <cassert>
#include <algorithm>

namespace Catch {

    namespace Generators {
        struct GeneratorTracker : TestCaseTracking::TrackerBase, IGeneratorTracker {
            GeneratorBasePtr m_generator;

            GeneratorTracker(TestCaseTracking::NameAndLocation const &nameAndLocation, TrackerContext &ctx,
                             ITracker *parent)
                    : TrackerBase(nameAndLocation, ctx, parent) {}

            ~GeneratorTracker() override;

            static GeneratorTracker &
            acquire(TrackerContext &ctx, TestCaseTracking::NameAndLocation const &nameAndLocation) {
                GeneratorTracker *tracker;

                ITracker &currentTracker = ctx.currentTracker();
                // Under specific circumstances, the generator we want
                // to acquire is also the current tracker. If this is
                // the case, we have to avoid looking through current
                // tracker's children, and instead return the current
                // tracker.
                // A case where this check is important is e.g.
                //     for (int i = 0; i < 5; ++i) {
                //         int n = GENERATE(1, 2);
                //     }
                //
                // without it, the code above creates 5 nested generators.
                if (currentTracker.nameAndLocation() == nameAndLocation) {
                    auto thisTracker =
                            currentTracker.parent()->findChild(nameAndLocation);
                    assert(thisTracker);
                    assert(thisTracker->isGeneratorTracker());
                    tracker = static_cast<GeneratorTracker *>( thisTracker );
                }
                else if (ITracker *childTracker =
                        currentTracker.findChild(nameAndLocation)) {
                    assert(childTracker);
                    assert(childTracker->isGeneratorTracker());
                    tracker = static_cast<GeneratorTracker *>( childTracker );
                }
                else {
                    auto newTracker =
                            Catch::Detail::make_unique<GeneratorTracker>(
                                    nameAndLocation, ctx, &currentTracker);
                    tracker = newTracker.get();
                    currentTracker.addChild(CATCH_MOVE(newTracker));
                }

                if (!tracker->isComplete()) {
                    tracker->open();
                }

                return *tracker;
            }

            // TrackerBase interface
            bool isGeneratorTracker() const override { return true; }

            auto hasGenerator() const -> bool override {
                return !!m_generator;
            }

            void close() override {
                TrackerBase::close();
                // If a generator has a child (it is followed by a section)
                // and none of its children have started, then we must wait
                // until later to start consuming its values.
                // This catches cases where `GENERATE` is placed between two
                // `SECTION`s.
                // **The check for m_children.empty cannot be removed**.
                // doing so would break `GENERATE` _not_ followed by `SECTION`s.
                const bool should_wait_for_child = [&]() {
                    // No children -> nobody to wait for
                    if (m_children.empty()) {
                        return false;
                    }
                    // If at least one child started executing, don't wait
                    if (std::find_if(
                            m_children.begin(),
                            m_children.end(),
                            [](TestCaseTracking::ITrackerPtr const &tracker) {
                                return tracker->hasStarted();
                            }) != m_children.end()) {
                        return false;
                    }

                    // No children have started. We need to check if they _can_
                    // start, and thus we should wait for them, or they cannot
                    // start (due to filters), and we shouldn't wait for them
                    ITracker *parent = m_parent;
                    // This is safe: there is always at least one section
                    // tracker in a test case tracking tree
                    while (!parent->isSectionTracker()) {
                        parent = parent->parent();
                    }
                    assert(parent &&
                                   "Missing root (test case) level section");

                    auto const &parentSection =
                            static_cast<SectionTracker const &>( *parent );
                    auto const &filters = parentSection.getFilters();
                    // No filters -> no restrictions on running sections
                    if (filters.empty()) {
                        return true;
                    }

                    for (auto const &child: m_children) {
                        if (child->isSectionTracker() &&
                            std::find(
                                    filters.begin(),
                                    filters.end(),
                                    static_cast<SectionTracker const &>( *child )
                                            .trimmedName()) != filters.end()) {
                            return true;
                        }
                    }
                    return false;
                }();

                // This check is a bit tricky, because m_generator->next()
                // has a side-effect, where it consumes generator's current
                // value, but we do not want to invoke the side-effect if
                // this generator is still waiting for any child to start.
                if (should_wait_for_child ||
                    (m_runState == CompletedSuccessfully &&
                     m_generator->countedNext())) {
                    m_children.clear();
                    m_runState = Executing;
                }
            }

            // IGeneratorTracker interface
            auto getGenerator() const -> GeneratorBasePtr const & override {
                return m_generator;
            }

            void setGenerator(GeneratorBasePtr &&generator) override {
                m_generator = CATCH_MOVE(generator);
            }
        };

        GeneratorTracker::~GeneratorTracker() = default;
    }

    RunContext::RunContext(IConfig const *_config, IEventListenerPtr &&reporter)
            : m_runInfo(_config->name()),
              m_context(getCurrentMutableContext()),
              m_config(_config),
              m_reporter(CATCH_MOVE(reporter)),
              m_lastAssertionInfo{StringRef(), SourceLineInfo("", 0), StringRef(), ResultDisposition::Normal},
              m_includeSuccessfulResults(
                      m_config->includeSuccessfulResults() || m_reporter->getPreferences().shouldReportAllAssertions) {
        m_context.setResultCapture(this);
        m_reporter->testRunStarting(m_runInfo);
    }

    RunContext::~RunContext() {
        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
    }

    Totals RunContext::runTest(TestCaseHandle const &testCase) {
        const Totals prevTotals = m_totals;

        std::string redirectedCout;
        std::string redirectedCerr;

        auto const &testInfo = testCase.getTestCaseInfo();

        m_reporter->testCaseStarting(testInfo);

        m_activeTestCase = &testCase;


        ITracker &rootTracker = m_trackerContext.startRun();
        assert(rootTracker.isSectionTracker());
        static_cast<SectionTracker &>(rootTracker).addInitialFilters(m_config->getSectionsToRun());

        // We intentionally only seed the internal RNG once per test case,
        // before it is first invoked. The reason for that is a complex
        // interplay of generator/section implementation details and the
        // Random*Generator types.
        //
        // The issue boils down to us needing to seed the Random*Generators
        // with different seed each, so that they return different sequences
        // of random numbers. We do this by giving them a number from the
        // shared RNG instance as their seed.
        //
        // However, this runs into an issue if the reseeding happens each
        // time the test case is entered (as opposed to first time only),
        // because multiple generators could get the same seed, e.g. in
        // ```cpp
        // TEST_CASE() {
        //     auto i = GENERATE(take(10, random(0, 100));
        //     SECTION("A") {
        //         auto j = GENERATE(take(10, random(0, 100));
        //     }
        //     SECTION("B") {
        //         auto k = GENERATE(take(10, random(0, 100));
        //     }
        // }
        // ```
        // `i` and `j` would properly return values from different sequences,
        // but `i` and `k` would return the same sequence, because their seed
        // would be the same.
        // (The reason their seeds would be the same is that the generator
        //  for k would be initialized when the test case is entered the second
        //  time, after the shared RNG instance was reset to the same value
        //  it had when the generator for i was initialized.)
        seedRng(*m_config);

        uint64_t testRuns = 0;
        do {
            m_trackerContext.startCycle();
            m_testCaseTracker = &SectionTracker::acquire(m_trackerContext,
                                                         TestCaseTracking::NameAndLocation(testInfo.name,
                                                                                           testInfo.lineInfo));

            m_reporter->testCasePartialStarting(testInfo, testRuns);

            const auto beforeRunTotals = m_totals;
            std::string oneRunCout, oneRunCerr;
            runCurrentTest(oneRunCout, oneRunCerr);
            redirectedCout += oneRunCout;
            redirectedCerr += oneRunCerr;

            const auto singleRunTotals = m_totals.delta(beforeRunTotals);
            auto statsForOneRun = TestCaseStats(testInfo, singleRunTotals, oneRunCout, oneRunCerr, aborting());

            m_reporter->testCasePartialEnded(statsForOneRun, testRuns);
            ++testRuns;
        } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());

        Totals deltaTotals = m_totals.delta(prevTotals);
        if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
            deltaTotals.assertions.failed++;
            deltaTotals.testCases.passed--;
            deltaTotals.testCases.failed++;
        }
        m_totals.testCases += deltaTotals.testCases;
        m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                                deltaTotals,
                                                redirectedCout,
                                                redirectedCerr,
                                                aborting()));

        m_activeTestCase = nullptr;
        m_testCaseTracker = nullptr;

        return deltaTotals;
    }


    void RunContext::assertionEnded(AssertionResult const &result) {
        if (result.getResultType() == ResultWas::Ok) {
            m_totals.assertions.passed++;
            m_lastAssertionPassed = true;
        }
        else if (!result.succeeded()) {
            m_lastAssertionPassed = false;
            if (result.isOk()) {
            }
            else if (m_activeTestCase->getTestCaseInfo().okToFail())
                m_totals.assertions.failedButOk++;
            else
                m_totals.assertions.failed++;
        }
        else {
            m_lastAssertionPassed = true;
        }

        m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals));

        if (result.getResultType() != ResultWas::Warning)
            m_messageScopes.clear();

        // Reset working state
        resetAssertionInfo();
        m_lastResult = result;
    }

    void RunContext::resetAssertionInfo() {
        m_lastAssertionInfo.macroName = StringRef();
        m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
    }

    bool RunContext::sectionStarted(SectionInfo const &sectionInfo, Counts &assertions) {
        ITracker &sectionTracker = SectionTracker::acquire(m_trackerContext,
                                                           TestCaseTracking::NameAndLocation(sectionInfo.name,
                                                                                             sectionInfo.lineInfo));
        if (!sectionTracker.isOpen())
            return false;
        m_activeSections.push_back(&sectionTracker);

        m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;

        m_reporter->sectionStarting(sectionInfo);

        assertions = m_totals.assertions;

        return true;
    }

    auto RunContext::acquireGeneratorTracker(StringRef generatorName,
                                             SourceLineInfo const &lineInfo) -> IGeneratorTracker & {
        using namespace Generators;
        GeneratorTracker &tracker = GeneratorTracker::acquire(m_trackerContext,
                                                              TestCaseTracking::NameAndLocation(
                                                                      static_cast<std::string>(generatorName),
                                                                      lineInfo));
        m_lastAssertionInfo.lineInfo = lineInfo;
        return tracker;
    }

    bool RunContext::testForMissingAssertions(Counts &assertions) {
        if (assertions.total() != 0)
            return false;
        if (!m_config->warnAboutMissingAssertions())
            return false;
        if (m_trackerContext.currentTracker().hasChildren())
            return false;
        m_totals.assertions.failed++;
        assertions.failed++;
        return true;
    }

    void RunContext::sectionEnded(SectionEndInfo const &endInfo) {
        Counts assertions = m_totals.assertions - endInfo.prevAssertions;
        bool missingAssertions = testForMissingAssertions(assertions);

        if (!m_activeSections.empty()) {
            m_activeSections.back()->close();
            m_activeSections.pop_back();
        }

        m_reporter->sectionEnded(
                SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
        m_messages.clear();
        m_messageScopes.clear();
    }

    void RunContext::sectionEndedEarly(SectionEndInfo const &endInfo) {
        if (m_unfinishedSections.empty())
            m_activeSections.back()->fail();
        else
            m_activeSections.back()->close();
        m_activeSections.pop_back();

        m_unfinishedSections.push_back(endInfo);
    }

    void RunContext::benchmarkPreparing(StringRef name) {
        m_reporter->benchmarkPreparing(name);
    }

    void RunContext::benchmarkStarting(BenchmarkInfo const &info) {
        m_reporter->benchmarkStarting(info);
    }

    void RunContext::benchmarkEnded(BenchmarkStats<> const &stats) {
        m_reporter->benchmarkEnded(stats);
    }

    void RunContext::benchmarkFailed(StringRef error) {
        m_reporter->benchmarkFailed(error);
    }

    void RunContext::pushScopedMessage(MessageInfo const &message) {
        m_messages.push_back(message);
    }

    void RunContext::popScopedMessage(MessageInfo const &message) {
        m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
    }

    void RunContext::emplaceUnscopedMessage(MessageBuilder const &builder) {
        m_messageScopes.emplace_back(builder);
    }

    std::string RunContext::getCurrentTestName() const {
        return m_activeTestCase
               ? m_activeTestCase->getTestCaseInfo().name
               : std::string();
    }

    const AssertionResult *RunContext::getLastResult() const {
        return &(*m_lastResult);
    }

    void RunContext::exceptionEarlyReported() {
        m_shouldReportUnexpected = false;
    }

    void RunContext::handleFatalErrorCondition(StringRef message) {
        // First notify reporter that bad things happened
        m_reporter->fatalErrorEncountered(message);

        // Don't rebuild the result -- the stringification itself can cause more fatal errors
        // Instead, fake a result data.
        AssertionResultData tempResult(ResultWas::FatalErrorCondition, {false});
        tempResult.message = static_cast<std::string>(message);
        AssertionResult result(m_lastAssertionInfo, tempResult);

        assertionEnded(result);

        handleUnfinishedSections();

        // Recreate section for test case (as we will lose the one that was in scope)
        auto const &testCaseInfo = m_activeTestCase->getTestCaseInfo();
        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);

        Counts assertions;
        assertions.failed = 1;
        SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
        m_reporter->sectionEnded(testCaseSectionStats);

        auto const &testInfo = m_activeTestCase->getTestCaseInfo();

        Totals deltaTotals;
        deltaTotals.testCases.failed = 1;
        deltaTotals.assertions.failed = 1;
        m_reporter->testCaseEnded(TestCaseStats(testInfo,
                                                deltaTotals,
                                                std::string(),
                                                std::string(),
                                                false));
        m_totals.testCases.failed++;
        m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
    }

    bool RunContext::lastAssertionPassed() {
        return m_lastAssertionPassed;
    }

    void RunContext::assertionPassed() {
        m_lastAssertionPassed = true;
        ++m_totals.assertions.passed;
        resetAssertionInfo();
        m_messageScopes.clear();
    }

    bool RunContext::aborting() const {
        return m_totals.assertions.failed >= static_cast<std::size_t>(m_config->abortAfter());
    }

    void RunContext::runCurrentTest(std::string &redirectedCout, std::string &redirectedCerr) {
        auto const &testCaseInfo = m_activeTestCase->getTestCaseInfo();
        SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
        m_reporter->sectionStarting(testCaseSection);
        Counts prevAssertions = m_totals.assertions;
        double duration = 0;
        m_shouldReportUnexpected = true;
        m_lastAssertionInfo = {"TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal};

        Timer timer;
        CATCH_TRY {
            if (m_reporter->getPreferences().shouldRedirectStdOut) {
#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
                RedirectedStreams redirectedStreams(redirectedCout, redirectedCerr);

                timer.start();
                invokeActiveTestCase();
#else
                                                                                                                                        OutputRedirect r(redirectedCout, redirectedCerr);
                timer.start();
                invokeActiveTestCase();
#endif
            }
            else {
                timer.start();
                invokeActiveTestCase();
            }
            duration = timer.getElapsedSeconds();
        } CATCH_CATCH_ANON (TestFailureException &) {
            // This just means the test was aborted due to failure
        } CATCH_CATCH_ALL {
            // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
            // are reported without translation at the point of origin.
            if (m_shouldReportUnexpected) {
                AssertionReaction dummyReaction;
                handleUnexpectedInflightException(m_lastAssertionInfo, translateActiveException(), dummyReaction);
            }
        }
        Counts assertions = m_totals.assertions - prevAssertions;
        bool missingAssertions = testForMissingAssertions(assertions);

        m_testCaseTracker->close();
        handleUnfinishedSections();
        m_messages.clear();
        m_messageScopes.clear();

        SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
        m_reporter->sectionEnded(testCaseSectionStats);
    }

    void RunContext::invokeActiveTestCase() {
        // We need to engage a handler for signals/structured exceptions
        // before running the tests themselves, or the binary can crash
        // without failed test being reported.
        FatalConditionHandlerGuard _(&m_fatalConditionhandler);
        // We keep having issue where some compilers warn about an unused
        // variable, even though the type has non-trivial constructor and
        // destructor. This is annoying and ugly, but it makes them stfu.
        (void) _;

        m_activeTestCase->invoke();
    }

    void RunContext::handleUnfinishedSections() {
        // If sections ended prematurely due to an exception we stored their
        // infos here so we can tear them down outside the unwind process.
        for (auto it = m_unfinishedSections.rbegin(),
                     itEnd = m_unfinishedSections.rend();
             it != itEnd;
             ++it)
            sectionEnded(*it);
        m_unfinishedSections.clear();
    }

    void RunContext::handleExpr(
            AssertionInfo const &info,
            ITransientExpression const &expr,
            AssertionReaction &reaction
    ) {
        m_reporter->assertionStarting(info);

        bool negated = isFalseTest(info.resultDisposition);
        bool result = expr.getResult() != negated;

        if (result) {
            if (!m_includeSuccessfulResults) {
                assertionPassed();
            }
            else {
                reportExpr(info, ResultWas::Ok, &expr, negated);
            }
        }
        else {
            reportExpr(info, ResultWas::ExpressionFailed, &expr, negated);
            populateReaction(reaction);
        }
    }

    void RunContext::reportExpr(
            AssertionInfo const &info,
            ResultWas::OfType resultType,
            ITransientExpression const *expr,
            bool negated) {

        m_lastAssertionInfo = info;
        AssertionResultData data(resultType, LazyExpression(negated));

        AssertionResult assertionResult{info, data};
        assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;

        assertionEnded(assertionResult);
    }

    void RunContext::handleMessage(
            AssertionInfo const &info,
            ResultWas::OfType resultType,
            StringRef message,
            AssertionReaction &reaction
    ) {
        m_reporter->assertionStarting(info);

        m_lastAssertionInfo = info;

        AssertionResultData data(resultType, LazyExpression(false));
        data.message = static_cast<std::string>(message);
        AssertionResult assertionResult{m_lastAssertionInfo, data};
        assertionEnded(assertionResult);
        if (!assertionResult.isOk())
            populateReaction(reaction);
    }

    void RunContext::handleUnexpectedExceptionNotThrown(
            AssertionInfo const &info,
            AssertionReaction &reaction
    ) {
        handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
    }

    void RunContext::handleUnexpectedInflightException(
            AssertionInfo const &info,
            std::string const &message,
            AssertionReaction &reaction
    ) {
        m_lastAssertionInfo = info;

        AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
        data.message = message;
        AssertionResult assertionResult{info, data};
        assertionEnded(assertionResult);
        populateReaction(reaction);
    }

    void RunContext::populateReaction(AssertionReaction &reaction) {
        reaction.shouldDebugBreak = m_config->shouldDebugBreak();
        reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
    }

    void RunContext::handleIncomplete(
            AssertionInfo const &info
    ) {
        m_lastAssertionInfo = info;

        AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
        data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
        AssertionResult assertionResult{info, data};
        assertionEnded(assertionResult);
    }

    void RunContext::handleNonExpr(
            AssertionInfo const &info,
            ResultWas::OfType resultType,
            AssertionReaction &reaction
    ) {
        m_lastAssertionInfo = info;

        AssertionResultData data(resultType, LazyExpression(false));
        AssertionResult assertionResult{info, data};
        assertionEnded(assertionResult);

        if (!assertionResult.isOk())
            populateReaction(reaction);
    }


    IResultCapture &getResultCapture() {
        if (auto *capture = getCurrentContext().getResultCapture())
            return *capture;
        else
            CATCH_INTERNAL_ERROR("No result capture instance");
    }

    void seedRng(IConfig const &config) {
        sharedRng().seed(config.rngSeed());
    }

    unsigned int rngSeed() {
        return getCurrentContext().getConfig()->rngSeed();
    }

}


namespace Catch {

    Section::Section(SectionInfo &&info) :
            m_info(CATCH_MOVE(info)),
            m_sectionIncluded(
                    getResultCapture().sectionStarted(m_info, m_assertions)) {
        // Non-"included" sections will not use the timing information
        // anyway, so don't bother with the potential syscall.
        if (m_sectionIncluded) {
            m_timer.start();
        }
    }

    Section::~Section() {
        if (m_sectionIncluded) {
            SectionEndInfo endInfo{m_info, m_assertions, m_timer.getElapsedSeconds()};
            if (uncaught_exceptions())
                getResultCapture().sectionEndedEarly(endInfo);
            else
                getResultCapture().sectionEnded(endInfo);
        }
    }

    // This indicates whether the section should be executed or not
    Section::operator bool() const {
        return m_sectionIncluded;
    }


} // end namespace Catch



#include <vector>

namespace Catch {

    namespace {
        static auto getSingletons() -> std::vector<ISingleton *> *& {
            static std::vector<ISingleton *> *g_singletons = nullptr;
            if (!g_singletons)
                g_singletons = new std::vector<ISingleton *>();
            return g_singletons;
        }
    }

    ISingleton::~ISingleton() = default;

    void addSingleton(ISingleton *singleton) {
        getSingletons()->push_back(singleton);
    }

    void cleanupSingletons() {
        auto &singletons = getSingletons();
        for (auto singleton: *singletons)
            delete singleton;
        delete singletons;
        singletons = nullptr;
    }

} // namespace Catch



#include <cstring>
#include <ostream>

namespace Catch {

    bool SourceLineInfo::operator==(SourceLineInfo const &other) const noexcept {
        return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
    }

    bool SourceLineInfo::operator<(SourceLineInfo const &other) const noexcept {
        // We can assume that the same file will usually have the same pointer.
        // Thus, if the pointers are the same, there is no point in calling the strcmp
        return line < other.line || (line == other.line && file != other.file && (std::strcmp(file, other.file) < 0));
    }

    std::ostream &operator<<(std::ostream &os, SourceLineInfo const &info) {
#ifndef __GNUG__
        os << info.file << '(' << info.line << ')';
#else
        os << info.file << ':' << info.line;
#endif
        return os;
    }

} // end namespace Catch




namespace Catch {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)

    void StartupExceptionRegistry::add(std::exception_ptr const &exception) noexcept {
        CATCH_TRY {
            m_exceptions.push_back(exception);
        } CATCH_CATCH_ALL {
            // If we run out of memory during start-up there's really not a lot more we can do about it
            std::terminate();
        }
    }

    std::vector<std::exception_ptr> const &StartupExceptionRegistry::getExceptions() const noexcept {
        return m_exceptions;
    }

#endif

} // end namespace Catch





#include <iostream>

namespace Catch {

// If you #define this you must implement these functions
#if !defined( CATCH_CONFIG_NOSTDOUT )

    std::ostream &cout() { return std::cout; }

    std::ostream &cerr() { return std::cerr; }

    std::ostream &clog() { return std::clog; }

#endif

} // namespace Catch



#include <algorithm>
#include <ostream>
#include <cstring>
#include <cctype>
#include <vector>

namespace Catch {

    bool startsWith(std::string const &s, std::string const &prefix) {
        return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
    }

    bool startsWith(StringRef s, char prefix) {
        return !s.empty() && s[0] == prefix;
    }

    bool endsWith(std::string const &s, std::string const &suffix) {
        return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
    }

    bool endsWith(std::string const &s, char suffix) {
        return !s.empty() && s[s.size() - 1] == suffix;
    }

    bool contains(std::string const &s, std::string const &infix) {
        return s.find(infix) != std::string::npos;
    }

    void toLowerInPlace(std::string &s) {
        std::transform(s.begin(), s.end(), s.begin(), [](char c) {
            return toLower(c);
        });
    }

    std::string toLower(std::string const &s) {
        std::string lc = s;
        toLowerInPlace(lc);
        return lc;
    }

    char toLower(char c) {
        return static_cast<char>(std::tolower(static_cast<unsigned char>(c)));
    }

    std::string trim(std::string const &str) {
        static char const *whitespaceChars = "\n\r\t ";
        std::string::size_type start = str.find_first_not_of(whitespaceChars);
        std::string::size_type end = str.find_last_not_of(whitespaceChars);

        return start != std::string::npos ? str.substr(start, 1 + end - start) : std::string();
    }

    StringRef trim(StringRef ref) {
        const auto is_ws = [](char c) {
            return c == ' ' || c == '\t' || c == '\n' || c == '\r';
        };
        size_t real_begin = 0;
        while (real_begin < ref.size() && is_ws(ref[real_begin])) { ++real_begin; }
        size_t real_end = ref.size();
        while (real_end > real_begin && is_ws(ref[real_end - 1])) { --real_end; }

        return ref.substr(real_begin, real_end - real_begin);
    }

    bool replaceInPlace(std::string &str, std::string const &replaceThis, std::string const &withThis) {
        bool replaced = false;
        std::size_t i = str.find(replaceThis);
        while (i != std::string::npos) {
            replaced = true;
            str = str.substr(0, i) + withThis + str.substr(i + replaceThis.size());
            if (i < str.size() - withThis.size())
                i = str.find(replaceThis, i + withThis.size());
            else
                i = std::string::npos;
        }
        return replaced;
    }

    std::vector<StringRef> splitStringRef(StringRef str, char delimiter) {
        std::vector<StringRef> subStrings;
        std::size_t start = 0;
        for (std::size_t pos = 0; pos < str.size(); ++pos) {
            if (str[pos] == delimiter) {
                if (pos - start > 1)
                    subStrings.push_back(str.substr(start, pos - start));
                start = pos + 1;
            }
        }
        if (start < str.size())
            subStrings.push_back(str.substr(start, str.size() - start));
        return subStrings;
    }

    std::ostream &operator<<(std::ostream &os, pluralise const &pluraliser) {
        os << pluraliser.m_count << ' ' << pluraliser.m_label;
        if (pluraliser.m_count != 1)
            os << 's';
        return os;
    }

}


#include <algorithm>
#include <ostream>
#include <cstring>
#include <cstdint>

namespace Catch {
    StringRef::StringRef(char const *rawChars) noexcept
            : StringRef(rawChars, std::strlen(rawChars)) {}

    auto StringRef::operator==(StringRef other) const noexcept -> bool {
        return m_size == other.m_size
               && (std::memcmp(m_start, other.m_start, m_size) == 0);
    }

    bool StringRef::operator<(StringRef rhs) const noexcept {
        if (m_size < rhs.m_size) {
            return strncmp(m_start, rhs.m_start, m_size) <= 0;
        }
        return strncmp(m_start, rhs.m_start, rhs.m_size) < 0;
    }

    int StringRef::compare(StringRef rhs) const {
        auto cmpResult =
                strncmp(m_start, rhs.m_start, std::min(m_size, rhs.m_size));

        // This means that strncmp found a difference before the strings
        // ended, and we can return it directly
        if (cmpResult != 0) {
            return cmpResult;
        }

        // If strings are equal up to length, then their comparison results on
        // their size
        if (m_size < rhs.m_size) {
            return -1;
        }
        else if (m_size > rhs.m_size) {
            return 1;
        }
        else {
            return 0;
        }
    }

    auto operator<<(std::ostream &os, StringRef str) -> std::ostream & {
        return os.write(str.data(), static_cast<std::streamsize>(str.size()));
    }

    std::string operator+(StringRef lhs, StringRef rhs) {
        std::string ret;
        ret.reserve(lhs.size() + rhs.size());
        ret += lhs;
        ret += rhs;
        return ret;
    }

    auto operator+=(std::string &lhs, StringRef rhs) -> std::string & {
        lhs.append(rhs.data(), rhs.size());
        return lhs;
    }

} // namespace Catch



namespace Catch {

    TagAliasRegistry::~TagAliasRegistry() {}

    TagAlias const *TagAliasRegistry::find(std::string const &alias) const {
        auto it = m_registry.find(alias);
        if (it != m_registry.end())
            return &(it->second);
        else
            return nullptr;
    }

    std::string TagAliasRegistry::expandAliases(std::string const &unexpandedTestSpec) const {
        std::string expandedTestSpec = unexpandedTestSpec;
        for (auto const &registryKvp: m_registry) {
            std::size_t pos = expandedTestSpec.find(registryKvp.first);
            if (pos != std::string::npos) {
                expandedTestSpec = expandedTestSpec.substr(0, pos) +
                                   registryKvp.second.tag +
                                   expandedTestSpec.substr(pos + registryKvp.first.size());
            }
        }
        return expandedTestSpec;
    }

    void TagAliasRegistry::add(std::string const &alias, std::string const &tag, SourceLineInfo const &lineInfo) {
        CATCH_ENFORCE(startsWith(alias, "[@") && endsWith(alias, ']'),
                      "error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo);

        CATCH_ENFORCE(m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
                      "error: tag alias, '" << alias << "' already registered.\n"
                                            << "\tFirst seen at: " << find(alias)->lineInfo << "\n"
                                            << "\tRedefined at: " << lineInfo);
    }

    ITagAliasRegistry::~ITagAliasRegistry() = default;

    ITagAliasRegistry const &ITagAliasRegistry::get() {
        return getRegistryHub().getTagAliasRegistry();
    }

} // end namespace Catch




namespace Catch {
    TestCaseInfoHasher::TestCaseInfoHasher(hash_t seed) : m_seed(seed) {}

    uint32_t TestCaseInfoHasher::operator()(TestCaseInfo const &t) const {
        // FNV-1a hash algorithm that is designed for uniqueness:
        const hash_t prime = 1099511628211u;
        hash_t hash = 14695981039346656037u;
        for (const char c: t.name) {
            hash ^= c;
            hash *= prime;
        }
        for (const char c: t.className) {
            hash ^= c;
            hash *= prime;
        }
        for (const Tag &tag: t.tags) {
            for (const char c: tag.original) {
                hash ^= c;
                hash *= prime;
            }
        }
        hash ^= m_seed;
        hash *= prime;
        const uint32_t low{static_cast<uint32_t>( hash )};
        const uint32_t high{static_cast<uint32_t>( hash >> 32 )};
        return low * high;
    }
} // namespace Catch




#include <algorithm>
#include <set>

namespace Catch {

    std::vector<TestCaseHandle> sortTests(IConfig const &config, std::vector<TestCaseHandle> const &unsortedTestCases) {
        switch (config.runOrder()) {
            case TestRunOrder::Declared:return unsortedTestCases;

            case TestRunOrder::LexicographicallySorted: {
                std::vector<TestCaseHandle> sorted = unsortedTestCases;
                std::sort(
                        sorted.begin(),
                        sorted.end(),
                        [](TestCaseHandle const &lhs, TestCaseHandle const &rhs) {
                            return lhs.getTestCaseInfo() < rhs.getTestCaseInfo();
                        }
                );
                return sorted;
            }
            case TestRunOrder::Randomized: {
                seedRng(config);
                using TestWithHash = std::pair<TestCaseInfoHasher::hash_t, TestCaseHandle>;

                TestCaseInfoHasher h{config.rngSeed()};
                std::vector<TestWithHash> indexed_tests;
                indexed_tests.reserve(unsortedTestCases.size());

                for (auto const &handle: unsortedTestCases) {
                    indexed_tests.emplace_back(h(handle.getTestCaseInfo()), handle);
                }

                std::sort(indexed_tests.begin(),
                          indexed_tests.end(),
                          [](TestWithHash const &lhs, TestWithHash const &rhs) {
                              if (lhs.first == rhs.first) {
                                  return lhs.second.getTestCaseInfo() <
                                         rhs.second.getTestCaseInfo();
                              }
                              return lhs.first < rhs.first;
                          });

                std::vector<TestCaseHandle> randomized;
                randomized.reserve(indexed_tests.size());

                for (auto const &indexed: indexed_tests) {
                    randomized.push_back(indexed.second);
                }

                return randomized;
            }
        }

        CATCH_INTERNAL_ERROR("Unknown test order value!");
    }

    bool isThrowSafe(TestCaseHandle const &testCase, IConfig const &config) {
        return !testCase.getTestCaseInfo().throws() || config.allowThrows();
    }

    bool matchTest(TestCaseHandle const &testCase, TestSpec const &testSpec, IConfig const &config) {
        return testSpec.matches(testCase.getTestCaseInfo()) && isThrowSafe(testCase, config);
    }

    void
    enforceNoDuplicateTestCases(std::vector<TestCaseHandle> const &tests) {
        auto testInfoCmp = [](TestCaseInfo const *lhs,
                              TestCaseInfo const *rhs) {
            return *lhs < *rhs;
        };
        std::set<TestCaseInfo const *, decltype(testInfoCmp)> seenTests(testInfoCmp);
        for (auto const &test: tests) {
            const auto infoPtr = &test.getTestCaseInfo();
            const auto prev = seenTests.insert(infoPtr);
            CATCH_ENFORCE(
                    prev.second,
                    "error: test case \"" << infoPtr->name << "\", with tags \""
                                          << infoPtr->tagsAsString() << "\" already defined.\n"
                                          << "\tFirst seen at " << (*prev.first)->lineInfo << "\n"
                                          << "\tRedefined at " << infoPtr->lineInfo);
        }
    }

    std::vector<TestCaseHandle>
    filterTests(std::vector<TestCaseHandle> const &testCases, TestSpec const &testSpec, IConfig const &config) {
        std::vector<TestCaseHandle> filtered;
        filtered.reserve(testCases.size());
        for (auto const &testCase: testCases) {
            if ((!testSpec.hasFilters() && !testCase.getTestCaseInfo().isHidden()) ||
                (testSpec.hasFilters() && matchTest(testCase, testSpec, config))) {
                filtered.push_back(testCase);
            }
        }
        return createShard(filtered, config.shardCount(), config.shardIndex());
    }

    std::vector<TestCaseHandle> const &getAllTestCasesSorted(IConfig const &config) {
        return getRegistryHub().getTestCaseRegistry().getAllTestsSorted(config);
    }

    void TestRegistry::registerTest(Detail::unique_ptr<TestCaseInfo> testInfo,
                                    Detail::unique_ptr<ITestInvoker> testInvoker) {
        m_handles.emplace_back(testInfo.get(), testInvoker.get());
        m_viewed_test_infos.push_back(testInfo.get());
        m_owned_test_infos.push_back(CATCH_MOVE(testInfo));
        m_invokers.push_back(CATCH_MOVE(testInvoker));
    }

    std::vector<TestCaseInfo *> const &TestRegistry::getAllInfos() const {
        return m_viewed_test_infos;
    }

    std::vector<TestCaseHandle> const &TestRegistry::getAllTests() const {
        return m_handles;
    }

    std::vector<TestCaseHandle> const &TestRegistry::getAllTestsSorted(IConfig const &config) const {
        if (m_sortedFunctions.empty())
            enforceNoDuplicateTestCases(m_handles);

        if (m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty()) {
            m_sortedFunctions = sortTests(config, m_handles);
            m_currentSortOrder = config.runOrder();
        }
        return m_sortedFunctions;
    }


    ///////////////////////////////////////////////////////////////////////////
    void TestInvokerAsFunction::invoke() const {
        m_testAsFunction();
    }

} // end namespace Catch




#include <algorithm>
#include <cassert>

#if defined(__clang__)
                                                                                                                        #    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch {
    namespace TestCaseTracking {

        NameAndLocation::NameAndLocation(std::string const &_name, SourceLineInfo const &_location)
                : name(_name),
                  location(_location) {}


        ITracker::~ITracker() = default;

        void ITracker::markAsNeedingAnotherRun() {
            m_runState = NeedsAnotherRun;
        }

        void ITracker::addChild(ITrackerPtr &&child) {
            m_children.push_back(CATCH_MOVE(child));
        }

        ITracker *ITracker::findChild(NameAndLocation const &nameAndLocation) {
            auto it = std::find_if(
                    m_children.begin(),
                    m_children.end(),
                    [&nameAndLocation](ITrackerPtr const &tracker) {
                        return tracker->nameAndLocation().location ==
                               nameAndLocation.location &&
                               tracker->nameAndLocation().name == nameAndLocation.name;
                    });
            return (it != m_children.end()) ? it->get() : nullptr;
        }

        bool ITracker::isSectionTracker() const { return false; }

        bool ITracker::isGeneratorTracker() const { return false; }

        bool ITracker::isSuccessfullyCompleted() const {
            return m_runState == CompletedSuccessfully;
        }

        bool ITracker::isOpen() const {
            return m_runState != NotStarted && !isComplete();
        }

        bool ITracker::hasStarted() const { return m_runState != NotStarted; }

        void ITracker::openChild() {
            if (m_runState != ExecutingChildren) {
                m_runState = ExecutingChildren;
                if (m_parent) {
                    m_parent->openChild();
                }
            }
        }

        ITracker &TrackerContext::startRun() {
            using namespace std::string_literals;
            m_rootTracker = Catch::Detail::make_unique<SectionTracker>(
                    NameAndLocation("{root}"s, CATCH_INTERNAL_LINEINFO),
                    *this,
                    nullptr);
            m_currentTracker = nullptr;
            m_runState = Executing;
            return *m_rootTracker;
        }

        void TrackerContext::endRun() {
            m_rootTracker.reset();
            m_currentTracker = nullptr;
            m_runState = NotStarted;
        }

        void TrackerContext::startCycle() {
            m_currentTracker = m_rootTracker.get();
            m_runState = Executing;
        }

        void TrackerContext::completeCycle() {
            m_runState = CompletedCycle;
        }

        bool TrackerContext::completedCycle() const {
            return m_runState == CompletedCycle;
        }

        ITracker &TrackerContext::currentTracker() {
            return *m_currentTracker;
        }

        void TrackerContext::setCurrentTracker(ITracker *tracker) {
            m_currentTracker = tracker;
        }


        TrackerBase::TrackerBase(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent) :
                ITracker(nameAndLocation, parent),
                m_ctx(ctx) {}

        bool TrackerBase::isComplete() const {
            return m_runState == CompletedSuccessfully || m_runState == Failed;
        }

        void TrackerBase::open() {
            m_runState = Executing;
            moveToThis();
            if (m_parent)
                m_parent->openChild();
        }

        void TrackerBase::close() {

            // Close any still open children (e.g. generators)
            while (&m_ctx.currentTracker() != this)
                m_ctx.currentTracker().close();

            switch (m_runState) {
                case NeedsAnotherRun:break;

                case Executing:m_runState = CompletedSuccessfully;
                    break;
                case ExecutingChildren:
                    if (std::all_of(m_children.begin(), m_children.end(),
                                    [](ITrackerPtr const &t) { return t->isComplete(); }))
                        m_runState = CompletedSuccessfully;
                    break;

                case NotStarted:
                case CompletedSuccessfully:
                case Failed:CATCH_INTERNAL_ERROR("Illogical state: " << m_runState);

                default:CATCH_INTERNAL_ERROR("Unknown state: " << m_runState);
            }
            moveToParent();
            m_ctx.completeCycle();
        }

        void TrackerBase::fail() {
            m_runState = Failed;
            if (m_parent)
                m_parent->markAsNeedingAnotherRun();
            moveToParent();
            m_ctx.completeCycle();
        }

        void TrackerBase::moveToParent() {
            assert(m_parent);
            m_ctx.setCurrentTracker(m_parent);
        }

        void TrackerBase::moveToThis() {
            m_ctx.setCurrentTracker(this);
        }

        SectionTracker::SectionTracker(NameAndLocation const &nameAndLocation, TrackerContext &ctx, ITracker *parent)
                : TrackerBase(nameAndLocation, ctx, parent),
                  m_trimmed_name(trim(nameAndLocation.name)) {
            if (parent) {
                while (!parent->isSectionTracker())
                    parent = parent->parent();

                SectionTracker &parentSection = static_cast<SectionTracker &>( *parent );
                addNextFilters(parentSection.m_filters);
            }
        }

        bool SectionTracker::isComplete() const {
            bool complete = true;

            if (m_filters.empty()
                || m_filters[0].empty()
                || std::find(m_filters.begin(), m_filters.end(), m_trimmed_name) != m_filters.end()) {
                complete = TrackerBase::isComplete();
            }
            return complete;
        }

        bool SectionTracker::isSectionTracker() const { return true; }

        SectionTracker &SectionTracker::acquire(TrackerContext &ctx, NameAndLocation const &nameAndLocation) {
            SectionTracker *section;

            ITracker &currentTracker = ctx.currentTracker();
            if (ITracker *childTracker =
                    currentTracker.findChild(nameAndLocation)) {
                assert(childTracker);
                assert(childTracker->isSectionTracker());
                section = static_cast<SectionTracker *>( childTracker );
            }
            else {
                auto newSection = Catch::Detail::make_unique<SectionTracker>(
                        nameAndLocation, ctx, &currentTracker);
                section = newSection.get();
                currentTracker.addChild(CATCH_MOVE(newSection));
            }
            if (!ctx.completedCycle())
                section->tryOpen();
            return *section;
        }

        void SectionTracker::tryOpen() {
            if (!isComplete())
                open();
        }

        void SectionTracker::addInitialFilters(std::vector<std::string> const &filters) {
            if (!filters.empty()) {
                m_filters.reserve(m_filters.size() + filters.size() + 2);
                m_filters.emplace_back(StringRef{}); // Root - should never be consulted
                m_filters.emplace_back(StringRef{}); // Test Case - not a section filter
                m_filters.insert(m_filters.end(), filters.begin(), filters.end());
            }
        }

        void SectionTracker::addNextFilters(std::vector<StringRef> const &filters) {
            if (filters.size() > 1)
                m_filters.insert(m_filters.end(), filters.begin() + 1, filters.end());
        }

        std::vector<StringRef> const &SectionTracker::getFilters() const {
            return m_filters;
        }

        StringRef SectionTracker::trimmedName() const {
            return m_trimmed_name;
        }

    } // namespace TestCaseTracking

} // namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif


#include <algorithm>
#include <iterator>

namespace Catch {

    namespace {
        StringRef extractClassName(StringRef classOrMethodName) {
            if (!startsWith(classOrMethodName, '&')) {
                return classOrMethodName;
            }

            // Remove the leading '&' to avoid having to special case it later
            const auto methodName =
                    classOrMethodName.substr(1, classOrMethodName.size());

            auto reverseStart = std::make_reverse_iterator(methodName.end());
            auto reverseEnd = std::make_reverse_iterator(methodName.begin());

            // We make a simplifying assumption that ":" is only present
            // in the input as part of "::" from C++ typenames (this is
            // relatively safe assumption because the input is generated
            // as stringification of type through preprocessor).
            auto lastColons = std::find(reverseStart, reverseEnd, ':') + 1;
            auto secondLastColons =
                    std::find(lastColons + 1, reverseEnd, ':');

            auto const startIdx = reverseEnd - secondLastColons;
            auto const classNameSize = secondLastColons - lastColons - 1;

            return methodName.substr(
                    static_cast<std::size_t>( startIdx ),
                    static_cast<std::size_t>( classNameSize ));
        }
    } // namespace

    Detail::unique_ptr<ITestInvoker> makeTestInvoker(void(*testAsFunction)()) {
        return Detail::make_unique<TestInvokerAsFunction>(testAsFunction);
    }

    AutoReg::AutoReg(Detail::unique_ptr<ITestInvoker> invoker, SourceLineInfo const &lineInfo, StringRef classOrMethod,
                     NameAndTags const &nameAndTags) noexcept {
        CATCH_TRY {
            getMutableRegistryHub()
                    .registerTest(
                            makeTestCaseInfo(
                                    extractClassName(classOrMethod),
                                    nameAndTags,
                                    lineInfo),
                            CATCH_MOVE(invoker)
                    );
        } CATCH_CATCH_ALL {
            // Do not throw when constructing global objects, instead register the exception to be processed later
            getMutableRegistryHub().registerStartupException();
        }
    }
}


namespace Catch {

    TestSpecParser::TestSpecParser(ITagAliasRegistry const &tagAliases) : m_tagAliases(&tagAliases) {}

    TestSpecParser &TestSpecParser::parse(std::string const &arg) {
        m_mode = None;
        m_exclusion = false;
        m_arg = m_tagAliases->expandAliases(arg);
        m_escapeChars.clear();
        m_substring.reserve(m_arg.size());
        m_patternName.reserve(m_arg.size());
        m_realPatternPos = 0;

        for (m_pos = 0; m_pos < m_arg.size(); ++m_pos)
            //if visitChar fails
            if (!visitChar(m_arg[m_pos])) {
                m_testSpec.m_invalidSpecs.push_back(arg);
                break;
            }
        endMode();
        return *this;
    }

    TestSpec TestSpecParser::testSpec() {
        addFilter();
        return CATCH_MOVE(m_testSpec);
    }

    bool TestSpecParser::visitChar(char c) {
        if ((m_mode != EscapedName) && (c == '\\')) {
            escape();
            addCharToPattern(c);
            return true;
        }
        else if ((m_mode != EscapedName) && (c == ',')) {
            return separate();
        }

        switch (m_mode) {
            case None:
                if (processNoneChar(c))
                    return true;
                break;
            case Name:processNameChar(c);
                break;
            case EscapedName:endMode();
                addCharToPattern(c);
                return true;
            default:
            case Tag:
            case QuotedName:
                if (processOtherChar(c))
                    return true;
                break;
        }

        m_substring += c;
        if (!isControlChar(c)) {
            m_patternName += c;
            m_realPatternPos++;
        }
        return true;
    }

    // Two of the processing methods return true to signal the caller to return
    // without adding the given character to the current pattern strings
    bool TestSpecParser::processNoneChar(char c) {
        switch (c) {
            case ' ':return true;
            case '~':m_exclusion = true;
                return false;
            case '[':startNewMode(Tag);
                return false;
            case '"':startNewMode(QuotedName);
                return false;
            default:startNewMode(Name);
                return false;
        }
    }

    void TestSpecParser::processNameChar(char c) {
        if (c == '[') {
            if (m_substring == "exclude:")
                m_exclusion = true;
            else
                endMode();
            startNewMode(Tag);
        }
    }

    bool TestSpecParser::processOtherChar(char c) {
        if (!isControlChar(c))
            return false;
        m_substring += c;
        endMode();
        return true;
    }

    void TestSpecParser::startNewMode(Mode mode) {
        m_mode = mode;
    }

    void TestSpecParser::endMode() {
        switch (m_mode) {
            case Name:
            case QuotedName:return addNamePattern();
            case Tag:return addTagPattern();
            case EscapedName:revertBackToLastMode();
                return;
            case None:
            default:return startNewMode(None);
        }
    }

    void TestSpecParser::escape() {
        saveLastMode();
        m_mode = EscapedName;
        m_escapeChars.push_back(m_realPatternPos);
    }

    bool TestSpecParser::isControlChar(char c) const {
        switch (m_mode) {
            default:return false;
            case None:return c == '~';
            case Name:return c == '[';
            case EscapedName:return true;
            case QuotedName:return c == '"';
            case Tag:return c == '[' || c == ']';
        }
    }

    void TestSpecParser::addFilter() {
        if (!m_currentFilter.m_required.empty() || !m_currentFilter.m_forbidden.empty()) {
            m_testSpec.m_filters.push_back(CATCH_MOVE(m_currentFilter));
            m_currentFilter = TestSpec::Filter();
        }
    }

    void TestSpecParser::saveLastMode() {
        lastMode = m_mode;
    }

    void TestSpecParser::revertBackToLastMode() {
        m_mode = lastMode;
    }

    bool TestSpecParser::separate() {
        if ((m_mode == QuotedName) || (m_mode == Tag)) {
            //invalid argument, signal failure to previous scope.
            m_mode = None;
            m_pos = m_arg.size();
            m_substring.clear();
            m_patternName.clear();
            m_realPatternPos = 0;
            return false;
        }
        endMode();
        addFilter();
        return true; //success
    }

    std::string TestSpecParser::preprocessPattern() {
        std::string token = m_patternName;
        for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
            token = token.substr(0, m_escapeChars[i] - i) + token.substr(m_escapeChars[i] - i + 1);
        m_escapeChars.clear();
        if (startsWith(token, "exclude:")) {
            m_exclusion = true;
            token = token.substr(8);
        }

        m_patternName.clear();
        m_realPatternPos = 0;

        return token;
    }

    void TestSpecParser::addNamePattern() {
        auto token = preprocessPattern();

        if (!token.empty()) {
            if (m_exclusion) {
                m_currentFilter.m_forbidden.emplace_back(
                        Detail::make_unique<TestSpec::NamePattern>(token, m_substring));
            }
            else {
                m_currentFilter.m_required.emplace_back(Detail::make_unique<TestSpec::NamePattern>(token, m_substring));
            }
        }
        m_substring.clear();
        m_exclusion = false;
        m_mode = None;
    }

    void TestSpecParser::addTagPattern() {
        auto token = preprocessPattern();

        if (!token.empty()) {
            // If the tag pattern is the "hide and tag" shorthand (e.g. [.foo])
            // we have to create a separate hide tag and shorten the real one
            if (token.size() > 1 && token[0] == '.') {
                token.erase(token.begin());
                if (m_exclusion) {
                    m_currentFilter.m_forbidden.emplace_back(
                            Detail::make_unique<TestSpec::TagPattern>(".", m_substring));
                    m_currentFilter.m_forbidden.emplace_back(
                            Detail::make_unique<TestSpec::TagPattern>(token, m_substring));
                }
                else {
                    m_currentFilter.m_required.emplace_back(
                            Detail::make_unique<TestSpec::TagPattern>(".", m_substring));
                    m_currentFilter.m_required.emplace_back(
                            Detail::make_unique<TestSpec::TagPattern>(token, m_substring));
                }
            }
            if (m_exclusion) {
                m_currentFilter.m_forbidden.emplace_back(Detail::make_unique<TestSpec::TagPattern>(token, m_substring));
            }
            else {
                m_currentFilter.m_required.emplace_back(Detail::make_unique<TestSpec::TagPattern>(token, m_substring));
            }
        }
        m_substring.clear();
        m_exclusion = false;
        m_mode = None;
    }

    TestSpec parseTestSpec(std::string const &arg) {
        return TestSpecParser(ITagAliasRegistry::get()).parse(arg).testSpec();
    }

} // namespace Catch



#include <algorithm>
#include <cstring>
#include <ostream>

namespace {
    bool isWhitespace(char c) {
        return c == ' ' || c == '\t' || c == '\n' || c == '\r';
    }

    bool isBreakableBefore(char c) {
        static const char chars[] = "[({<|";
        return std::memchr(chars, c, sizeof(chars) - 1) != nullptr;
    }

    bool isBreakableAfter(char c) {
        static const char chars[] = "])}>.,:;*+-=&/\\";
        return std::memchr(chars, c, sizeof(chars) - 1) != nullptr;
    }

    bool isBoundary(std::string const &line, size_t at) {
        assert(at > 0);
        assert(at <= line.size());

        return at == line.size() ||
               (isWhitespace(line[at]) && !isWhitespace(line[at - 1])) ||
               isBreakableBefore(line[at]) ||
               isBreakableAfter(line[at - 1]);
    }

} // namespace

namespace Catch {
    namespace TextFlow {

        void Column::const_iterator::calcLength() {
            m_addHyphen = false;
            m_parsedTo = m_lineStart;

            std::string const &current_line = m_column.m_string;
            if (current_line[m_lineStart] == '\n') {
                ++m_parsedTo;
            }

            const auto maxLineLength = m_column.m_width - indentSize();
            const auto maxParseTo = std::min(current_line.size(), m_lineStart + maxLineLength);
            while (m_parsedTo < maxParseTo &&
                   current_line[m_parsedTo] != '\n') {
                ++m_parsedTo;
            }

            // If we encountered a newline before the column is filled,
            // then we linebreak at the newline and consider this line
            // finished.
            if (m_parsedTo < m_lineStart + maxLineLength) {
                m_lineLength = m_parsedTo - m_lineStart;
            }
            else {
                // Look for a natural linebreak boundary in the column
                // (We look from the end, so that the first found boundary is
                // the right one)
                size_t newLineLength = maxLineLength;
                while (newLineLength > 0 && !isBoundary(current_line, m_lineStart + newLineLength)) {
                    --newLineLength;
                }
                while (newLineLength > 0 &&
                       isWhitespace(current_line[m_lineStart + newLineLength - 1])) {
                    --newLineLength;
                }

                // If we found one, then that is where we linebreak
                if (newLineLength > 0) {
                    m_lineLength = newLineLength;
                }
                else {
                    // Otherwise we have to split text with a hyphen
                    m_addHyphen = true;
                    m_lineLength = maxLineLength - 1;
                }
            }
        }

        size_t Column::const_iterator::indentSize() const {
            auto initial =
                    m_lineStart == 0 ? m_column.m_initialIndent : std::string::npos;
            return initial == std::string::npos ? m_column.m_indent : initial;
        }

        std::string
        Column::const_iterator::addIndentAndSuffix(size_t position,
                                                   size_t length) const {
            std::string ret;
            const auto desired_indent = indentSize();
            ret.reserve(desired_indent + length + m_addHyphen);
            ret.append(desired_indent, ' ');
            ret.append(m_column.m_string, position, length);
            if (m_addHyphen) {
                ret.push_back('-');
            }

            return ret;
        }

        Column::const_iterator::const_iterator(Column const &column) : m_column(column) {
            assert(m_column.m_width > m_column.m_indent);
            assert(m_column.m_initialIndent == std::string::npos ||
                   m_column.m_width > m_column.m_initialIndent);
            calcLength();
            if (m_lineLength == 0) {
                m_lineStart = m_column.m_string.size();
            }
        }

        std::string Column::const_iterator::operator*() const {
            assert(m_lineStart <= m_parsedTo);
            return addIndentAndSuffix(m_lineStart, m_lineLength);
        }

        Column::const_iterator &Column::const_iterator::operator++() {
            m_lineStart += m_lineLength;
            std::string const &current_line = m_column.m_string;
            if (m_lineStart < current_line.size() && current_line[m_lineStart] == '\n') {
                m_lineStart += 1;
            }
            else {
                while (m_lineStart < current_line.size() &&
                       isWhitespace(current_line[m_lineStart])) {
                    ++m_lineStart;
                }
            }

            if (m_lineStart != current_line.size()) {
                calcLength();
            }
            return *this;
        }

        Column::const_iterator Column::const_iterator::operator++(int) {
            const_iterator prev(*this);
            operator++();
            return prev;
        }

        std::ostream &operator<<(std::ostream &os, Column const &col) {
            bool first = true;
            for (auto line: col) {
                if (first) {
                    first = false;
                }
                else {
                    os << '\n';
                }
                os << line;
            }
            return os;
        }

        Column Spacer(size_t spaceWidth) {
            Column ret{""};
            ret.width(spaceWidth);
            return ret;
        }

        Columns::iterator::iterator(Columns const &columns, EndTag) :
                m_columns(columns.m_columns), m_activeIterators(0) {

            m_iterators.reserve(m_columns.size());
            for (auto const &col: m_columns) {
                m_iterators.push_back(col.end());
            }
        }

        Columns::iterator::iterator(Columns const &columns) :
                m_columns(columns.m_columns),
                m_activeIterators(m_columns.size()) {

            m_iterators.reserve(m_columns.size());
            for (auto const &col: m_columns) {
                m_iterators.push_back(col.begin());
            }
        }

        std::string Columns::iterator::operator*() const {
            std::string row, padding;

            for (size_t i = 0; i < m_columns.size(); ++i) {
                const auto width = m_columns[i].width();
                if (m_iterators[i] != m_columns[i].end()) {
                    std::string col = *m_iterators[i];
                    row += padding;
                    row += col;

                    padding.clear();
                    if (col.size() < width) {
                        padding.append(width - col.size(), ' ');
                    }
                }
                else {
                    padding.append(width, ' ');
                }
            }
            return row;
        }

        Columns::iterator &Columns::iterator::operator++() {
            for (size_t i = 0; i < m_columns.size(); ++i) {
                if (m_iterators[i] != m_columns[i].end()) {
                    ++m_iterators[i];
                }
            }
            return *this;
        }

        Columns::iterator Columns::iterator::operator++(int) {
            iterator prev(*this);
            operator++();
            return prev;
        }

        std::ostream &operator<<(std::ostream &os, Columns const &cols) {
            bool first = true;
            for (auto line: cols) {
                if (first) {
                    first = false;
                }
                else {
                    os << '\n';
                }
                os << line;
            }
            return os;
        }

        Columns Column::operator+(Column const &other) {
            Columns cols;
            cols += *this;
            cols += other;
            return cols;
        }

        Columns &Columns::operator+=(Column const &col) {
            m_columns.push_back(col);
            return *this;
        }

        Columns Columns::operator+(Column const &col) {
            Columns combined = *this;
            combined += col;
            return combined;
        }

    } // namespace TextFlow
} // namespace Catch




#include <exception>

namespace Catch {
    bool uncaught_exceptions() {
#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
        return false;
#elif defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
        return std::uncaught_exceptions() > 0;
#else
        return std::uncaught_exception();
#endif
    }
} // end namespace Catch



namespace Catch {

    WildcardPattern::WildcardPattern(std::string const &pattern,
                                     CaseSensitive caseSensitivity)
            : m_caseSensitivity(caseSensitivity),
              m_pattern(normaliseString(pattern)) {
        if (startsWith(m_pattern, '*')) {
            m_pattern = m_pattern.substr(1);
            m_wildcard = WildcardAtStart;
        }
        if (endsWith(m_pattern, '*')) {
            m_pattern = m_pattern.substr(0, m_pattern.size() - 1);
            m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
        }
    }

    bool WildcardPattern::matches(std::string const &str) const {
        switch (m_wildcard) {
            case NoWildcard:return m_pattern == normaliseString(str);
            case WildcardAtStart:return endsWith(normaliseString(str), m_pattern);
            case WildcardAtEnd:return startsWith(normaliseString(str), m_pattern);
            case WildcardAtBothEnds:return contains(normaliseString(str), m_pattern);
            default:CATCH_INTERNAL_ERROR("Unknown enum");
        }
    }

    std::string WildcardPattern::normaliseString(std::string const &str) const {
        return trim(m_caseSensitivity == CaseSensitive::No ? toLower(str) : str);
    }
}


// Note: swapping these two includes around causes MSVC to error out
//       while in /permissive- mode. No, I don't know why.
//       Tested on VS 2019, 18.{3, 4}.x

#include <iomanip>
#include <type_traits>

namespace Catch {

    namespace {

        size_t trailingBytes(unsigned char c) {
            if ((c & 0xE0) == 0xC0) {
                return 2;
            }
            if ((c & 0xF0) == 0xE0) {
                return 3;
            }
            if ((c & 0xF8) == 0xF0) {
                return 4;
            }
            CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
        }

        uint32_t headerValue(unsigned char c) {
            if ((c & 0xE0) == 0xC0) {
                return c & 0x1F;
            }
            if ((c & 0xF0) == 0xE0) {
                return c & 0x0F;
            }
            if ((c & 0xF8) == 0xF0) {
                return c & 0x07;
            }
            CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
        }

        void hexEscapeChar(std::ostream &os, unsigned char c) {
            std::ios_base::fmtflags f(os.flags());
            os << "\\x"
               << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
               << static_cast<int>(c);
            os.flags(f);
        }

        bool shouldNewline(XmlFormatting fmt) {
            return !!(static_cast<std::underlying_type_t<XmlFormatting>>(fmt & XmlFormatting::Newline));
        }

        bool shouldIndent(XmlFormatting fmt) {
            return !!(static_cast<std::underlying_type_t<XmlFormatting>>(fmt & XmlFormatting::Indent));
        }

    } // anonymous namespace

    XmlFormatting operator|(XmlFormatting lhs, XmlFormatting rhs) {
        return static_cast<XmlFormatting>(
                static_cast<std::underlying_type_t<XmlFormatting>>(lhs) |
                static_cast<std::underlying_type_t<XmlFormatting>>(rhs)
        );
    }

    XmlFormatting operator&(XmlFormatting lhs, XmlFormatting rhs) {
        return static_cast<XmlFormatting>(
                static_cast<std::underlying_type_t<XmlFormatting>>(lhs) &
                static_cast<std::underlying_type_t<XmlFormatting>>(rhs)
        );
    }


    XmlEncode::XmlEncode(StringRef str, ForWhat forWhat)
            : m_str(str),
              m_forWhat(forWhat) {}

    void XmlEncode::encodeTo(std::ostream &os) const {
        // Apostrophe escaping not necessary if we always use " to write attributes
        // (see: http://www.w3.org/TR/xml/#syntax)

        for (std::size_t idx = 0; idx < m_str.size(); ++idx) {
            unsigned char c = static_cast<unsigned char>(m_str[idx]);
            switch (c) {
                case '<': os << "&lt;";
                    break;
                case '&': os << "&amp;";
                    break;

                case '>':
                    // See: http://www.w3.org/TR/xml/#syntax
                    if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
                        os << "&gt;";
                    else
                        os << c;
                    break;

                case '\"':
                    if (m_forWhat == ForAttributes)
                        os << "&quot;";
                    else
                        os << c;
                    break;

                default:
                    // Check for control characters and invalid utf-8

                    // Escape control characters in standard ascii
                    // see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
                    if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F) {
                        hexEscapeChar(os, c);
                        break;
                    }

                    // Plain ASCII: Write it to stream
                    if (c < 0x7F) {
                        os << c;
                        break;
                    }

                    // UTF-8 territory
                    // Check if the encoding is valid and if it is not, hex escape bytes.
                    // Important: We do not check the exact decoded values for validity, only the encoding format
                    // First check that this bytes is a valid lead byte:
                    // This means that it is not encoded as 1111 1XXX
                    // Or as 10XX XXXX
                    if (c < 0xC0 ||
                        c >= 0xF8) {
                        hexEscapeChar(os, c);
                        break;
                    }

                    auto encBytes = trailingBytes(c);
                    // Are there enough bytes left to avoid accessing out-of-bounds memory?
                    if (idx + encBytes - 1 >= m_str.size()) {
                        hexEscapeChar(os, c);
                        break;
                    }
                    // The header is valid, check data
                    // The next encBytes bytes must together be a valid utf-8
                    // This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
                    bool valid = true;
                    uint32_t value = headerValue(c);
                    for (std::size_t n = 1; n < encBytes; ++n) {
                        unsigned char nc = static_cast<unsigned char>(m_str[idx + n]);
                        valid &= ((nc & 0xC0) == 0x80);
                        value = (value << 6) | (nc & 0x3F);
                    }

                    if (
                        // Wrong bit pattern of following bytes
                            (!valid) ||
                            // Overlong encodings
                            (value < 0x80) ||
                            (0x80 <= value && value < 0x800 && encBytes > 2) ||
                            (0x800 < value && value < 0x10000 && encBytes > 3) ||
                            // Encoded value out of range
                            (value >= 0x110000)
                            ) {
                        hexEscapeChar(os, c);
                        break;
                    }

                    // If we got here, this is in fact a valid(ish) utf-8 sequence
                    for (std::size_t n = 0; n < encBytes; ++n) {
                        os << m_str[idx + n];
                    }
                    idx += encBytes - 1;
                    break;
            }
        }
    }

    std::ostream &operator<<(std::ostream &os, XmlEncode const &xmlEncode) {
        xmlEncode.encodeTo(os);
        return os;
    }

    XmlWriter::ScopedElement::ScopedElement(XmlWriter *writer, XmlFormatting fmt)
            : m_writer(writer),
              m_fmt(fmt) {}

    XmlWriter::ScopedElement::ScopedElement(ScopedElement &&other) noexcept
            : m_writer(other.m_writer),
              m_fmt(other.m_fmt) {
        other.m_writer = nullptr;
        other.m_fmt = XmlFormatting::None;
    }

    XmlWriter::ScopedElement &XmlWriter::ScopedElement::operator=(ScopedElement &&other) noexcept {
        if (m_writer) {
            m_writer->endElement();
        }
        m_writer = other.m_writer;
        other.m_writer = nullptr;
        m_fmt = other.m_fmt;
        other.m_fmt = XmlFormatting::None;
        return *this;
    }


    XmlWriter::ScopedElement::~ScopedElement() {
        if (m_writer) {
            m_writer->endElement(m_fmt);
        }
    }

    XmlWriter::ScopedElement &
    XmlWriter::ScopedElement::writeText(StringRef text, XmlFormatting fmt) {
        m_writer->writeText(text, fmt);
        return *this;
    }

    XmlWriter::ScopedElement &
    XmlWriter::ScopedElement::writeAttribute(StringRef name,
                                             StringRef attribute) {
        m_writer->writeAttribute(name, attribute);
        return *this;
    }


    XmlWriter::XmlWriter(std::ostream &os) : m_os(os) {
        writeDeclaration();
    }

    XmlWriter::~XmlWriter() {
        while (!m_tags.empty()) {
            endElement();
        }
        newlineIfNecessary();
    }

    XmlWriter &XmlWriter::startElement(std::string const &name, XmlFormatting fmt) {
        ensureTagClosed();
        newlineIfNecessary();
        if (shouldIndent(fmt)) {
            m_os << m_indent;
            m_indent += "  ";
        }
        m_os << '<' << name;
        m_tags.push_back(name);
        m_tagIsOpen = true;
        applyFormatting(fmt);
        return *this;
    }

    XmlWriter::ScopedElement XmlWriter::scopedElement(std::string const &name, XmlFormatting fmt) {
        ScopedElement scoped(this, fmt);
        startElement(name, fmt);
        return scoped;
    }

    XmlWriter &XmlWriter::endElement(XmlFormatting fmt) {
        m_indent = m_indent.substr(0, m_indent.size() - 2);

        if (m_tagIsOpen) {
            m_os << "/>";
            m_tagIsOpen = false;
        }
        else {
            newlineIfNecessary();
            if (shouldIndent(fmt)) {
                m_os << m_indent;
            }
            m_os << "</" << m_tags.back() << '>';
        }
        m_os << std::flush;
        applyFormatting(fmt);
        m_tags.pop_back();
        return *this;
    }

    XmlWriter &XmlWriter::writeAttribute(StringRef name,
                                         StringRef attribute) {
        if (!name.empty() && !attribute.empty())
            m_os << ' ' << name << "=\"" << XmlEncode(attribute, XmlEncode::ForAttributes) << '"';
        return *this;
    }

    XmlWriter &XmlWriter::writeAttribute(StringRef name, bool attribute) {
        writeAttribute(name, (attribute ? "true"_sr : "false"_sr));
        return *this;
    }

    XmlWriter &XmlWriter::writeAttribute(StringRef name,
                                         char const *attribute) {
        writeAttribute(name, StringRef(attribute));
        return *this;
    }

    XmlWriter &XmlWriter::writeText(StringRef text, XmlFormatting fmt) {
        CATCH_ENFORCE(!m_tags.empty(), "Cannot write text as top level element");
        if (!text.empty()) {
            bool tagWasOpen = m_tagIsOpen;
            ensureTagClosed();
            if (tagWasOpen && shouldIndent(fmt)) {
                m_os << m_indent;
            }
            m_os << XmlEncode(text, XmlEncode::ForTextNodes);
            applyFormatting(fmt);
        }
        return *this;
    }

    XmlWriter &XmlWriter::writeComment(StringRef text, XmlFormatting fmt) {
        ensureTagClosed();
        if (shouldIndent(fmt)) {
            m_os << m_indent;
        }
        m_os << "<!-- " << text << " -->";
        applyFormatting(fmt);
        return *this;
    }

    void XmlWriter::writeStylesheetRef(StringRef url) {
        m_os << R"(<?xml-stylesheet type="text/xsl" href=")" << url << R"("?>)" << '\n';
    }

    void XmlWriter::ensureTagClosed() {
        if (m_tagIsOpen) {
            m_os << '>' << std::flush;
            newlineIfNecessary();
            m_tagIsOpen = false;
        }
    }

    void XmlWriter::applyFormatting(XmlFormatting fmt) {
        m_needsNewline = shouldNewline(fmt);
    }

    void XmlWriter::writeDeclaration() {
        m_os << R"(<?xml version="1.0" encoding="UTF-8"?>)" << '\n';
    }

    void XmlWriter::newlineIfNecessary() {
        if (m_needsNewline) {
            m_os << '\n' << std::flush;
            m_needsNewline = false;
        }
    }
}


namespace Catch {
    namespace Matchers {

        std::string MatcherUntypedBase::toString() const {
            if (m_cachedToString.empty()) {
                m_cachedToString = describe();
            }
            return m_cachedToString;
        }

        MatcherUntypedBase::~MatcherUntypedBase() = default;

    } // namespace Matchers
} // namespace Catch




namespace Catch {
    namespace Matchers {

        std::string IsEmptyMatcher::describe() const {
            return "is empty";
        }

        std::string HasSizeMatcher::describe() const {
            ReusableStringStream sstr;
            sstr << "has size == " << m_target_size;
            return sstr.str();
        }

        IsEmptyMatcher IsEmpty() {
            return {};
        }

        HasSizeMatcher SizeIs(std::size_t sz) {
            return HasSizeMatcher{sz};
        }

    } // end namespace Matchers
} // end namespace Catch



namespace Catch {
    namespace Matchers {

        bool ExceptionMessageMatcher::match(std::exception const &ex) const {
            return ex.what() == m_message;
        }

        std::string ExceptionMessageMatcher::describe() const {
            return "exception message matches \"" + m_message + '"';
        }

        ExceptionMessageMatcher Message(std::string const &message) {
            return ExceptionMessageMatcher(message);
        }

    } // namespace Matchers
} // namespace Catch



#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <cstdint>
#include <sstream>
#include <iomanip>
#include <limits>


namespace Catch {
    namespace {

        template<typename FP>
        bool almostEqualUlps(FP lhs, FP rhs, uint64_t maxUlpDiff) {
            // Comparison with NaN should always be false.
            // This way we can rule it out before getting into the ugly details
            if (Catch::isnan(lhs) || Catch::isnan(rhs)) {
                return false;
            }

            // This should also handle positive and negative zeros, infinities
            const auto ulpDist = ulpDistance(lhs, rhs);

            return ulpDist <= maxUlpDiff;
        }

#if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)

                                                                                                                                float nextafter(float x, float y) {
        return ::nextafterf(x, y);
    }

    double nextafter(double x, double y) {
        return ::nextafter(x, y);
    }

#endif // ^^^ CATCH_CONFIG_GLOBAL_NEXTAFTER ^^^

        template<typename FP>
        FP step(FP start, FP direction, uint64_t steps) {
            for (uint64_t i = 0; i < steps; ++i) {
#if defined(CATCH_CONFIG_GLOBAL_NEXTAFTER)
                start = Catch::nextafter(start, direction);
#else
                start = std::nextafter(start, direction);
#endif
            }
            return start;
        }

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
        bool marginComparison(double lhs, double rhs, double margin) {
            return (lhs + margin >= rhs) && (rhs + margin >= lhs);
        }

        template<typename FloatingPoint>
        void write(std::ostream &out, FloatingPoint num) {
            out << std::scientific
                << std::setprecision(std::numeric_limits<FloatingPoint>::max_digits10 - 1)
                << num;
        }

    } // end anonymous namespace

    namespace Matchers {
        namespace Detail {

            enum class FloatingPointKind : uint8_t {
                Float,
                Double
            };

        } // end namespace Detail


        WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
                : m_target{target}, m_margin{margin} {
            CATCH_ENFORCE(margin >= 0, "Invalid margin: " << margin << '.'
                                                          << " Margin has to be non-negative.");
        }

        // Performs equivalent check of std::fabs(lhs - rhs) <= margin
        // But without the subtraction to allow for INFINITY in comparison
        bool WithinAbsMatcher::match(double const &matchee) const {
            return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
        }

        std::string WithinAbsMatcher::describe() const {
            return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
        }


        WithinUlpsMatcher::WithinUlpsMatcher(double target, uint64_t ulps, Detail::FloatingPointKind baseType)
                : m_target{target}, m_ulps{ulps}, m_type{baseType} {
            CATCH_ENFORCE(m_type == Detail::FloatingPointKind::Double
                          || m_ulps < (std::numeric_limits<uint32_t>::max) (),
                          "Provided ULP is impossibly large for a float comparison.");
            CATCH_ENFORCE(std::numeric_limits<double>::is_iec559,
                          "WithinUlp matcher only supports platforms with "
                          "IEEE-754 compatible floating point representation");
        }

#if defined(__clang__)
                                                                                                                                #pragma clang diagnostic push
// Clang <3.5 reports on the default branch in the switch below
#pragma clang diagnostic ignored "-Wunreachable-code"
#endif

        bool WithinUlpsMatcher::match(double const &matchee) const {
            switch (m_type) {
                case Detail::FloatingPointKind::Float:
                    return almostEqualUlps<float>(static_cast<float>(matchee), static_cast<float>(m_target), m_ulps);
                case Detail::FloatingPointKind::Double:return almostEqualUlps<double>(matchee, m_target, m_ulps);
                default:CATCH_INTERNAL_ERROR("Unknown Detail::FloatingPointKind value");
            }
        }

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

        std::string WithinUlpsMatcher::describe() const {
            std::stringstream ret;

            ret << "is within " << m_ulps << " ULPs of ";

            if (m_type == Detail::FloatingPointKind::Float) {
                write(ret, static_cast<float>(m_target));
                ret << 'f';
            }
            else {
                write(ret, m_target);
            }

            ret << " ([";
            if (m_type == Detail::FloatingPointKind::Double) {
                write(ret,
                      step(m_target,
                           -std::numeric_limits<double>::infinity(),
                           m_ulps));
                ret << ", ";
                write(ret,
                      step(m_target,
                           std::numeric_limits<double>::infinity(),
                           m_ulps));
            }
            else {
                // We have to cast INFINITY to float because of MinGW, see #1782
                write(ret,
                      step(static_cast<float>( m_target ),
                           -std::numeric_limits<float>::infinity(),
                           m_ulps));
                ret << ", ";
                write(ret,
                      step(static_cast<float>( m_target ),
                           std::numeric_limits<float>::infinity(),
                           m_ulps));
            }
            ret << "])";

            return ret.str();
        }

        WithinRelMatcher::WithinRelMatcher(double target, double epsilon) :
                m_target(target),
                m_epsilon(epsilon) {
            CATCH_ENFORCE(m_epsilon >= 0., "Relative comparison with epsilon <  0 does not make sense.");
            CATCH_ENFORCE(m_epsilon < 1., "Relative comparison with epsilon >= 1 does not make sense.");
        }

        bool WithinRelMatcher::match(double const &matchee) const {
            const auto relMargin = m_epsilon * (std::max) (std::fabs(matchee), std::fabs(m_target));
            return marginComparison(matchee, m_target,
                                    std::isinf(relMargin) ? 0 : relMargin);
        }

        std::string WithinRelMatcher::describe() const {
            Catch::ReusableStringStream sstr;
            sstr << "and " << m_target << " are within " << m_epsilon * 100. << "% of each other";
            return sstr.str();
        }


        WithinUlpsMatcher WithinULP(double target, uint64_t maxUlpDiff) {
            return WithinUlpsMatcher(target, maxUlpDiff, Detail::FloatingPointKind::Double);
        }

        WithinUlpsMatcher WithinULP(float target, uint64_t maxUlpDiff) {
            return WithinUlpsMatcher(target, maxUlpDiff, Detail::FloatingPointKind::Float);
        }

        WithinAbsMatcher WithinAbs(double target, double margin) {
            return WithinAbsMatcher(target, margin);
        }

        WithinRelMatcher WithinRel(double target, double eps) {
            return WithinRelMatcher(target, eps);
        }

        WithinRelMatcher WithinRel(double target) {
            return WithinRelMatcher(target, std::numeric_limits<double>::epsilon() * 100);
        }

        WithinRelMatcher WithinRel(float target, float eps) {
            return WithinRelMatcher(target, eps);
        }

        WithinRelMatcher WithinRel(float target) {
            return WithinRelMatcher(target, std::numeric_limits<float>::epsilon() * 100);
        }


    } // namespace Matchers
} // namespace Catch




std::string Catch::Matchers::Detail::finalizeDescription(const std::string &desc) {
    if (desc.empty()) {
        return "matches undescribed predicate";
    }
    else {
        return "matches predicate: \"" + desc + '"';
    }
}


namespace Catch {
    namespace Matchers {
        std::string AllTrueMatcher::describe() const { return "contains only true"; }

        AllTrueMatcher AllTrue() { return AllTrueMatcher{}; }

        std::string NoneTrueMatcher::describe() const { return "contains no true"; }

        NoneTrueMatcher NoneTrue() { return NoneTrueMatcher{}; }

        std::string AnyTrueMatcher::describe() const { return "contains at least one true"; }

        AnyTrueMatcher AnyTrue() { return AnyTrueMatcher{}; }
    } // namespace Matchers
} // namespace Catch



#include <regex>

namespace Catch {
    namespace Matchers {

        CasedString::CasedString(std::string const &str, CaseSensitive caseSensitivity)
                : m_caseSensitivity(caseSensitivity),
                  m_str(adjustString(str)) {}

        std::string CasedString::adjustString(std::string const &str) const {
            return m_caseSensitivity == CaseSensitive::No
                   ? toLower(str)
                   : str;
        }

        StringRef CasedString::caseSensitivitySuffix() const {
            return m_caseSensitivity == CaseSensitive::Yes
                   ? StringRef()
                   : " (case insensitive)"_sr;
        }


        StringMatcherBase::StringMatcherBase(StringRef operation, CasedString const &comparator)
                : m_comparator(comparator),
                  m_operation(operation) {
        }

        std::string StringMatcherBase::describe() const {
            std::string description;
            description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
                                m_comparator.caseSensitivitySuffix().size());
            description += m_operation;
            description += ": \"";
            description += m_comparator.m_str;
            description += '"';
            description += m_comparator.caseSensitivitySuffix();
            return description;
        }

        StringEqualsMatcher::StringEqualsMatcher(CasedString const &comparator) : StringMatcherBase("equals"_sr,
                                                                                                    comparator) {}

        bool StringEqualsMatcher::match(std::string const &source) const {
            return m_comparator.adjustString(source) == m_comparator.m_str;
        }


        StringContainsMatcher::StringContainsMatcher(CasedString const &comparator) : StringMatcherBase("contains"_sr,
                                                                                                        comparator) {}

        bool StringContainsMatcher::match(std::string const &source) const {
            return contains(m_comparator.adjustString(source), m_comparator.m_str);
        }


        StartsWithMatcher::StartsWithMatcher(CasedString const &comparator) : StringMatcherBase("starts with"_sr,
                                                                                                comparator) {}

        bool StartsWithMatcher::match(std::string const &source) const {
            return startsWith(m_comparator.adjustString(source), m_comparator.m_str);
        }


        EndsWithMatcher::EndsWithMatcher(CasedString const &comparator) : StringMatcherBase("ends with"_sr,
                                                                                            comparator) {}

        bool EndsWithMatcher::match(std::string const &source) const {
            return endsWith(m_comparator.adjustString(source), m_comparator.m_str);
        }


        RegexMatcher::RegexMatcher(std::string regex, CaseSensitive caseSensitivity) : m_regex(CATCH_MOVE(regex)),
                                                                                       m_caseSensitivity(
                                                                                               caseSensitivity) {}

        bool RegexMatcher::match(std::string const &matchee) const {
            auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
            if (m_caseSensitivity == CaseSensitive::No) {
                flags |= std::regex::icase;
            }
            auto reg = std::regex(m_regex, flags);
            return std::regex_match(matchee, reg);
        }

        std::string RegexMatcher::describe() const {
            return "matches " + ::Catch::Detail::stringify(m_regex) +
                   ((m_caseSensitivity == CaseSensitive::Yes) ? " case sensitively" : " case insensitively");
        }


        StringEqualsMatcher Equals(std::string const &str, CaseSensitive caseSensitivity) {
            return StringEqualsMatcher(CasedString(str, caseSensitivity));
        }

        StringContainsMatcher ContainsSubstring(std::string const &str, CaseSensitive caseSensitivity) {
            return StringContainsMatcher(CasedString(str, caseSensitivity));
        }

        EndsWithMatcher EndsWith(std::string const &str, CaseSensitive caseSensitivity) {
            return EndsWithMatcher(CasedString(str, caseSensitivity));
        }

        StartsWithMatcher StartsWith(std::string const &str, CaseSensitive caseSensitivity) {
            return StartsWithMatcher(CasedString(str, caseSensitivity));
        }

        RegexMatcher Matches(std::string const &regex, CaseSensitive caseSensitivity) {
            return RegexMatcher(regex, caseSensitivity);
        }

    } // namespace Matchers
} // namespace Catch



namespace Catch {
    namespace Matchers {
        MatcherGenericBase::~MatcherGenericBase() = default;

        namespace Detail {

            std::string describe_multi_matcher(StringRef combine, std::string const *descriptions_begin,
                                               std::string const *descriptions_end) {
                std::string description;
                std::size_t combined_size = 4;
                for (auto desc = descriptions_begin; desc != descriptions_end; ++desc) {
                    combined_size += desc->size();
                }
                combined_size += static_cast<size_t>(descriptions_end - descriptions_begin - 1) * combine.size();

                description.reserve(combined_size);

                description += "( ";
                bool first = true;
                for (auto desc = descriptions_begin; desc != descriptions_end; ++desc) {
                    if (first)
                        first = false;
                    else
                        description += combine;
                    description += *desc;
                }
                description += " )";
                return description;
            }

        } // namespace Detail
    } // namespace Matchers
} // namespace Catch




namespace Catch {

    // This is the general overload that takes a any string matcher
    // There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
    // the Equals matcher (so the header does not mention matchers)
    void handleExceptionMatchExpr(AssertionHandler &handler, StringMatcher const &matcher, StringRef matcherString) {
        std::string exceptionMessage = Catch::translateActiveException();
        MatchExpr<std::string, StringMatcher const &> expr(CATCH_MOVE(exceptionMessage), matcher, matcherString);
        handler.handleExpr(expr);
    }

} // namespace Catch



#include <ostream>

namespace Catch {

    AutomakeReporter::~AutomakeReporter() {}

    void AutomakeReporter::testCaseEnded(TestCaseStats const &_testCaseStats) {
        // Possible values to emit are PASS, XFAIL, SKIP, FAIL, XPASS and ERROR.
        m_stream << ":test-result: ";
        if (_testCaseStats.totals.assertions.allPassed()) {
            m_stream << "PASS";
        }
        else if (_testCaseStats.totals.assertions.allOk()) {
            m_stream << "XFAIL";
        }
        else {
            m_stream << "FAIL";
        }
        m_stream << ' ' << _testCaseStats.testInfo->name << '\n';
        StreamingReporterBase::testCaseEnded(_testCaseStats);
    }

    void AutomakeReporter::skipTest(TestCaseInfo const &testInfo) {
        m_stream << ":test-result: SKIP " << testInfo.name << '\n';
    }

} // end namespace Catch






namespace Catch {
    ReporterBase::ReporterBase(ReporterConfig &&config) :
            IEventListener(config.fullConfig()),
            m_wrapped_stream(CATCH_MOVE(config).takeStream()),
            m_stream(m_wrapped_stream->stream()),
            m_colour(makeColourImpl(config.colourMode(), m_wrapped_stream.get())),
            m_customOptions(config.customOptions()) {}

    ReporterBase::~ReporterBase() = default;

    void ReporterBase::listReporters(
            std::vector<ReporterDescription> const &descriptions) {
        defaultListReporters(m_stream, descriptions, m_config->verbosity());
    }

    void ReporterBase::listListeners(
            std::vector<ListenerDescription> const &descriptions) {
        defaultListListeners(m_stream, descriptions);
    }

    void ReporterBase::listTests(std::vector<TestCaseHandle> const &tests) {
        defaultListTests(m_stream,
                         m_colour.get(),
                         tests,
                         m_config->hasTestFilters(),
                         m_config->verbosity());
    }

    void ReporterBase::listTags(std::vector<TagInfo> const &tags) {
        defaultListTags(m_stream, tags, m_config->hasTestFilters());
    }

} // namespace Catch




#include <ostream>

namespace {

    constexpr Catch::StringRef bothOrAll(std::uint64_t count) {
        switch (count) {
            case 1:return Catch::StringRef{};
            case 2:return "both "_catch_sr;
            default:return "all "_catch_sr;
        }
    }

} // anon namespace


namespace Catch {
    namespace {

        // Colour::LightGrey
        static constexpr Colour::Code compactDimColour = Colour::FileName;

#ifdef CATCH_PLATFORM_MAC
                                                                                                                                static constexpr Catch::StringRef compactFailedString = "FAILED"_sr;
    static constexpr Catch::StringRef compactPassedString = "PASSED"_sr;
#else
        static constexpr Catch::StringRef compactFailedString = "failed"_sr;
        static constexpr Catch::StringRef compactPassedString = "passed"_sr;
#endif

// Colour, message variants:
// - white: No tests ran.
// -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
// - white: Passed [both/all] N test cases (no assertions).
// -   red: Failed N tests cases, failed M assertions.
// - green: Passed [both/all] N tests cases with M assertions.
        void printTotals(std::ostream &out, const Totals &totals, ColourImpl *colourImpl) {
            if (totals.testCases.total() == 0) {
                out << "No tests ran.";
            }
            else if (totals.testCases.failed == totals.testCases.total()) {
                auto guard = colourImpl->guardColour(Colour::ResultError).engage(out);
                const StringRef qualify_assertions_failed =
                        totals.assertions.failed == totals.assertions.total() ?
                        bothOrAll(totals.assertions.failed) : StringRef{};
                out <<
                    "Failed " << bothOrAll(totals.testCases.failed)
                    << pluralise(totals.testCases.failed, "test case"_sr) << ", "
                                                                             "failed " << qualify_assertions_failed <<
                    pluralise(totals.assertions.failed, "assertion"_sr) << '.';
            }
            else if (totals.assertions.total() == 0) {
                out <<
                    "Passed " << bothOrAll(totals.testCases.total())
                    << pluralise(totals.testCases.total(), "test case"_sr)
                    << " (no assertions).";
            }
            else if (totals.assertions.failed) {
                out << colourImpl->guardColour(Colour::ResultError) <<
                    "Failed " << pluralise(totals.testCases.failed, "test case"_sr) << ", "
                                                                                       "failed "
                    << pluralise(totals.assertions.failed, "assertion"_sr) << '.';
            }
            else {
                out << colourImpl->guardColour(Colour::ResultSuccess) <<
                    "Passed " << bothOrAll(totals.testCases.passed)
                    << pluralise(totals.testCases.passed, "test case"_sr) <<
                    " with " << pluralise(totals.assertions.passed, "assertion"_sr) << '.';
            }
        }

// Implementation of CompactReporter formatting
        class AssertionPrinter {
        public:
            AssertionPrinter &operator=(AssertionPrinter const &) = delete;

            AssertionPrinter(AssertionPrinter const &) = delete;

            AssertionPrinter(std::ostream &_stream, AssertionStats const &_stats, bool _printInfoMessages,
                             ColourImpl *colourImpl_)
                    : stream(_stream), result(_stats.assertionResult), messages(_stats.infoMessages),
                      itMessage(_stats.infoMessages.begin()), printInfoMessages(_printInfoMessages),
                      colourImpl(colourImpl_) {}

            void print() {
                printSourceInfo();

                itMessage = messages.begin();

                switch (result.getResultType()) {
                    case ResultWas::Ok:printResultType(Colour::ResultSuccess, compactPassedString);
                        printOriginalExpression();
                        printReconstructedExpression();
                        if (!result.hasExpression())
                            printRemainingMessages(Colour::None);
                        else
                            printRemainingMessages();
                        break;
                    case ResultWas::ExpressionFailed:
                        if (result.isOk())
                            printResultType(Colour::ResultSuccess, compactFailedString + " - but was ok"_sr);
                        else
                            printResultType(Colour::Error, compactFailedString);
                        printOriginalExpression();
                        printReconstructedExpression();
                        printRemainingMessages();
                        break;
                    case ResultWas::ThrewException:printResultType(Colour::Error, compactFailedString);
                        printIssue("unexpected exception with message:");
                        printMessage();
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::FatalErrorCondition:printResultType(Colour::Error, compactFailedString);
                        printIssue("fatal error condition with message:");
                        printMessage();
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::DidntThrowException:printResultType(Colour::Error, compactFailedString);
                        printIssue("expected exception, got none");
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::Info:printResultType(Colour::None, "info"_sr);
                        printMessage();
                        printRemainingMessages();
                        break;
                    case ResultWas::Warning:printResultType(Colour::None, "warning"_sr);
                        printMessage();
                        printRemainingMessages();
                        break;
                    case ResultWas::ExplicitFailure:printResultType(Colour::Error, compactFailedString);
                        printIssue("explicitly");
                        printRemainingMessages(Colour::None);
                        break;
                        // These cases are here to prevent compiler warnings
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:printResultType(Colour::Error, "** internal error **");
                        break;
                }
            }

        private:
            void printSourceInfo() const {
                stream << colourImpl->guardColour(Colour::FileName)
                       << result.getSourceInfo() << ':';
            }

            void printResultType(Colour::Code colour, StringRef passOrFail) const {
                if (!passOrFail.empty()) {
                    stream << colourImpl->guardColour(colour) << ' ' << passOrFail;
                    stream << ':';
                }
            }

            void printIssue(char const *issue) const {
                stream << ' ' << issue;
            }

            void printExpressionWas() {
                if (result.hasExpression()) {
                    stream << ';';
                    {
                        stream << colourImpl->guardColour(compactDimColour) << " expression was:";
                    }
                    printOriginalExpression();
                }
            }

            void printOriginalExpression() const {
                if (result.hasExpression()) {
                    stream << ' ' << result.getExpression();
                }
            }

            void printReconstructedExpression() const {
                if (result.hasExpandedExpression()) {
                    stream << colourImpl->guardColour(compactDimColour) << " for: ";
                    stream << result.getExpandedExpression();
                }
            }

            void printMessage() {
                if (itMessage != messages.end()) {
                    stream << " '" << itMessage->message << '\'';
                    ++itMessage;
                }
            }

            void printRemainingMessages(Colour::Code colour = compactDimColour) {
                if (itMessage == messages.end())
                    return;

                const auto itEnd = messages.cend();
                const auto N = static_cast<std::size_t>(std::distance(itMessage, itEnd));

                stream << colourImpl->guardColour(colour) << " with "
                       << pluralise(N, "message"_sr) << ':';

                while (itMessage != itEnd) {
                    // If this assertion is a warning ignore any INFO messages
                    if (printInfoMessages || itMessage->type != ResultWas::Info) {
                        printMessage();
                        if (itMessage != itEnd) {
                            stream << colourImpl->guardColour(compactDimColour) << " and";
                        }
                        continue;
                    }
                    ++itMessage;
                }
            }

        private:
            std::ostream &stream;
            AssertionResult const &result;
            std::vector<MessageInfo> messages;
            std::vector<MessageInfo>::const_iterator itMessage;
            bool printInfoMessages;
            ColourImpl *colourImpl;
        };

    } // anon namespace

    std::string CompactReporter::getDescription() {
        return "Reports test results on a single line, suitable for IDEs";
    }

    void CompactReporter::noMatchingTestCases(StringRef unmatchedSpec) {
        m_stream << "No test cases matched '" << unmatchedSpec << "'\n";
    }

    void CompactReporter::testRunStarting(TestRunInfo const &) {
        if (m_config->testSpec().hasFilters()) {
            m_stream << m_colour->guardColour(Colour::BrightYellow)
                     << "Filters: "
                     << serializeFilters(m_config->getTestsOrTags())
                     << '\n';
        }
        m_stream << "RNG seed: " << m_config->rngSeed() << '\n';
    }

    void CompactReporter::assertionEnded(AssertionStats const &_assertionStats) {
        AssertionResult const &result = _assertionStats.assertionResult;

        bool printInfoMessages = true;

        // Drop out if result was successful and we're not printing those
        if (!m_config->includeSuccessfulResults() && result.isOk()) {
            if (result.getResultType() != ResultWas::Warning)
                return;
            printInfoMessages = false;
        }

        AssertionPrinter printer(m_stream, _assertionStats, printInfoMessages, m_colour.get());
        printer.print();

        m_stream << '\n' << std::flush;
    }

    void CompactReporter::sectionEnded(SectionStats const &_sectionStats) {
        double dur = _sectionStats.durationInSeconds;
        if (shouldShowDuration(*m_config, dur)) {
            m_stream << getFormattedDuration(dur) << " s: " << _sectionStats.sectionInfo.name << '\n' << std::flush;
        }
    }

    void CompactReporter::testRunEnded(TestRunStats const &_testRunStats) {
        printTotals(m_stream, _testRunStats.totals, m_colour.get());
        m_stream << "\n\n" << std::flush;
        StreamingReporterBase::testRunEnded(_testRunStats);
    }

    CompactReporter::~CompactReporter() {}

} // end namespace Catch




#include <cstdio>

#if defined(_MSC_VER)
                                                                                                                        #pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
 // Note that 4062 (not all labels are handled and default is missing) is enabled
#endif

#if defined(__clang__)
                                                                                                                        #  pragma clang diagnostic push
// For simplicity, benchmarking-only helpers are always enabled
#  pragma clang diagnostic ignored "-Wunused-function"
#endif


namespace Catch {

    namespace {

// Formatter impl for ConsoleReporter
        class ConsoleAssertionPrinter {
        public:
            ConsoleAssertionPrinter &operator=(ConsoleAssertionPrinter const &) = delete;

            ConsoleAssertionPrinter(ConsoleAssertionPrinter const &) = delete;

            ConsoleAssertionPrinter(std::ostream &_stream, AssertionStats const &_stats, ColourImpl *colourImpl_,
                                    bool _printInfoMessages)
                    : stream(_stream),
                      stats(_stats),
                      result(_stats.assertionResult),
                      colour(Colour::None),
                      message(result.getMessage()),
                      messages(_stats.infoMessages),
                      colourImpl(colourImpl_),
                      printInfoMessages(_printInfoMessages) {
                switch (result.getResultType()) {
                    case ResultWas::Ok:colour = Colour::Success;
                        passOrFail = "PASSED"_sr;
                        //if( result.hasMessage() )
                        if (_stats.infoMessages.size() == 1)
                            messageLabel = "with message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel = "with messages";
                        break;
                    case ResultWas::ExpressionFailed:
                        if (result.isOk()) {
                            colour = Colour::Success;
                            passOrFail = "FAILED - but was ok"_sr;
                        }
                        else {
                            colour = Colour::Error;
                            passOrFail = "FAILED"_sr;
                        }
                        if (_stats.infoMessages.size() == 1)
                            messageLabel = "with message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel = "with messages";
                        break;
                    case ResultWas::ThrewException:colour = Colour::Error;
                        passOrFail = "FAILED"_sr;
                        messageLabel = "due to unexpected exception with ";
                        if (_stats.infoMessages.size() == 1)
                            messageLabel += "message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel += "messages";
                        break;
                    case ResultWas::FatalErrorCondition:colour = Colour::Error;
                        passOrFail = "FAILED"_sr;
                        messageLabel = "due to a fatal error condition";
                        break;
                    case ResultWas::DidntThrowException:colour = Colour::Error;
                        passOrFail = "FAILED"_sr;
                        messageLabel = "because no exception was thrown where one was expected";
                        break;
                    case ResultWas::Info:messageLabel = "info";
                        break;
                    case ResultWas::Warning:messageLabel = "warning";
                        break;
                    case ResultWas::ExplicitFailure:passOrFail = "FAILED"_sr;
                        colour = Colour::Error;
                        if (_stats.infoMessages.size() == 1)
                            messageLabel = "explicitly with message";
                        if (_stats.infoMessages.size() > 1)
                            messageLabel = "explicitly with messages";
                        break;
                        // These cases are here to prevent compiler warnings
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:passOrFail = "** internal error **"_sr;
                        colour = Colour::Error;
                        break;
                }
            }

            void print() const {
                printSourceInfo();
                if (stats.totals.assertions.total() > 0) {
                    printResultType();
                    printOriginalExpression();
                    printReconstructedExpression();
                }
                else {
                    stream << '\n';
                }
                printMessage();
            }

        private:
            void printResultType() const {
                if (!passOrFail.empty()) {
                    stream << colourImpl->guardColour(colour) << passOrFail << ":\n";
                }
            }

            void printOriginalExpression() const {
                if (result.hasExpression()) {
                    stream << colourImpl->guardColour(Colour::OriginalExpression)
                           << "  " << result.getExpressionInMacro() << '\n';
                }
            }

            void printReconstructedExpression() const {
                if (result.hasExpandedExpression()) {
                    stream << "with expansion:\n";
                    stream << colourImpl->guardColour(Colour::ReconstructedExpression)
                           << TextFlow::Column(result.getExpandedExpression())
                                   .indent(2)
                           << '\n';
                }
            }

            void printMessage() const {
                if (!messageLabel.empty())
                    stream << messageLabel << ':' << '\n';
                for (auto const &msg: messages) {
                    // If this assertion is a warning ignore any INFO messages
                    if (printInfoMessages || msg.type != ResultWas::Info)
                        stream << TextFlow::Column(msg.message).indent(2) << '\n';
                }
            }

            void printSourceInfo() const {
                stream << colourImpl->guardColour(Colour::FileName)
                       << result.getSourceInfo() << ": ";
            }

            std::ostream &stream;
            AssertionStats const &stats;
            AssertionResult const &result;
            Colour::Code colour;
            StringRef passOrFail;
            std::string messageLabel;
            std::string message;
            std::vector<MessageInfo> messages;
            ColourImpl *colourImpl;
            bool printInfoMessages;
        };

        std::size_t makeRatio(std::uint64_t number, std::uint64_t total) {
            const auto ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
            return (ratio == 0 && number > 0) ? 1 : static_cast<std::size_t>(ratio);
        }

        std::size_t &findMax(std::size_t &i, std::size_t &j, std::size_t &k) {
            if (i > j && i > k)
                return i;
            else if (j > k)
                return j;
            else
                return k;
        }

        enum class Justification {
            Left, Right
        };

        struct ColumnInfo {
            std::string name;
            std::size_t width;
            Justification justification;
        };
        struct ColumnBreak {
        };
        struct RowBreak {
        };

        class Duration {
            enum class Unit {
                Auto,
                Nanoseconds,
                Microseconds,
                Milliseconds,
                Seconds,
                Minutes
            };
            static const uint64_t s_nanosecondsInAMicrosecond = 1000;
            static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
            static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
            static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;

            double m_inNanoseconds;
            Unit m_units;

        public:
            explicit Duration(double inNanoseconds, Unit units = Unit::Auto)
                    : m_inNanoseconds(inNanoseconds),
                      m_units(units) {
                if (m_units == Unit::Auto) {
                    if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
                        m_units = Unit::Nanoseconds;
                    else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
                        m_units = Unit::Microseconds;
                    else if (m_inNanoseconds < s_nanosecondsInASecond)
                        m_units = Unit::Milliseconds;
                    else if (m_inNanoseconds < s_nanosecondsInAMinute)
                        m_units = Unit::Seconds;
                    else
                        m_units = Unit::Minutes;
                }

            }

            auto value() const -> double {
                switch (m_units) {
                    case Unit::Microseconds:return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
                    case Unit::Milliseconds:return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
                    case Unit::Seconds:return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
                    case Unit::Minutes:return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
                    default:return m_inNanoseconds;
                }
            }

            StringRef unitsAsString() const {
                switch (m_units) {
                    case Unit::Nanoseconds:return "ns"_sr;
                    case Unit::Microseconds:return "us"_sr;
                    case Unit::Milliseconds:return "ms"_sr;
                    case Unit::Seconds:return "s"_sr;
                    case Unit::Minutes:return "m"_sr;
                    default:return "** internal error **"_sr;
                }

            }

            friend auto operator<<(std::ostream &os, Duration const &duration) -> std::ostream & {
                return os << duration.value() << ' ' << duration.unitsAsString();
            }
        };
    } // end anon namespace

    class TablePrinter {
        std::ostream &m_os;
        std::vector<ColumnInfo> m_columnInfos;
        ReusableStringStream m_oss;
        int m_currentColumn = -1;
        bool m_isOpen = false;

    public:
        TablePrinter(std::ostream &os, std::vector<ColumnInfo> columnInfos)
                : m_os(os),
                  m_columnInfos(CATCH_MOVE(columnInfos)) {}

        auto columnInfos() const -> std::vector<ColumnInfo> const & {
            return m_columnInfos;
        }

        void open() {
            if (!m_isOpen) {
                m_isOpen = true;
                *this << RowBreak();

                TextFlow::Columns headerCols;
                auto spacer = TextFlow::Spacer(2);
                for (auto const &info: m_columnInfos) {
                    assert(info.width > 2);
                    headerCols += TextFlow::Column(info.name).width(info.width - 2);
                    headerCols += spacer;
                }
                m_os << headerCols << '\n';

                m_os << lineOfChars('-') << '\n';
            }
        }

        void close() {
            if (m_isOpen) {
                *this << RowBreak();
                m_os << '\n' << std::flush;
                m_isOpen = false;
            }
        }

        template<typename T>
        friend TablePrinter &operator<<(TablePrinter &tp, T const &value) {
            tp.m_oss << value;
            return tp;
        }

        friend TablePrinter &operator<<(TablePrinter &tp, ColumnBreak) {
            auto colStr = tp.m_oss.str();
            const auto strSize = colStr.size();
            tp.m_oss.str("");
            tp.open();
            if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
                tp.m_currentColumn = -1;
                tp.m_os << '\n';
            }
            tp.m_currentColumn++;

            auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
            auto padding = (strSize + 1 < colInfo.width)
                           ? std::string(colInfo.width - (strSize + 1), ' ')
                           : std::string();
            if (colInfo.justification == Justification::Left)
                tp.m_os << colStr << padding << ' ';
            else
                tp.m_os << padding << colStr << ' ';
            return tp;
        }

        friend TablePrinter &operator<<(TablePrinter &tp, RowBreak) {
            if (tp.m_currentColumn > 0) {
                tp.m_os << '\n';
                tp.m_currentColumn = -1;
            }
            return tp;
        }
    };

    ConsoleReporter::ConsoleReporter(ReporterConfig &&config) :
            StreamingReporterBase(CATCH_MOVE(config)),
            m_tablePrinter(Detail::make_unique<TablePrinter>(m_stream,
                                                             [&config]() -> std::vector<ColumnInfo> {
                                                                 if (config.fullConfig()->benchmarkNoAnalysis()) {
                                                                     return {
                                                                             {"benchmark name",
                                                                                     CATCH_CONFIG_CONSOLE_WIDTH -
                                                                                     43, Justification::Left},
                                                                             {"     samples", 14, Justification::Right},
                                                                             {"  iterations", 14, Justification::Right},
                                                                             {"        mean", 14, Justification::Right}
                                                                     };
                                                                 }
                                                                 else {
                                                                     return {
                                                                             {"benchmark name",
                                                                                     CATCH_CONFIG_CONSOLE_WIDTH -
                                                                                     43, Justification::Left},
                                                                             {"samples      mean       std dev",      14, Justification::Right},
                                                                             {"iterations   low mean   low std dev",  14, Justification::Right},
                                                                             {"estimated    high mean  high std dev", 14, Justification::Right}
                                                                     };
                                                                 }
                                                             }())) {}

    ConsoleReporter::~ConsoleReporter() = default;

    std::string ConsoleReporter::getDescription() {
        return "Reports test results as plain lines of text";
    }

    void ConsoleReporter::noMatchingTestCases(StringRef unmatchedSpec) {
        m_stream << "No test cases matched '" << unmatchedSpec << "'\n";
    }

    void ConsoleReporter::reportInvalidTestSpec(StringRef arg) {
        m_stream << "Invalid Filter: " << arg << '\n';
    }

    void ConsoleReporter::assertionStarting(AssertionInfo const &) {}

    void ConsoleReporter::assertionEnded(AssertionStats const &_assertionStats) {
        AssertionResult const &result = _assertionStats.assertionResult;

        bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

        // Drop out if result was successful but we're not printing them.
        if (!includeResults && result.getResultType() != ResultWas::Warning)
            return;

        lazyPrint();

        ConsoleAssertionPrinter printer(m_stream, _assertionStats, m_colour.get(), includeResults);
        printer.print();
        m_stream << '\n' << std::flush;
    }

    void ConsoleReporter::sectionStarting(SectionInfo const &_sectionInfo) {
        m_tablePrinter->close();
        m_headerPrinted = false;
        StreamingReporterBase::sectionStarting(_sectionInfo);
    }

    void ConsoleReporter::sectionEnded(SectionStats const &_sectionStats) {
        m_tablePrinter->close();
        if (_sectionStats.missingAssertions) {
            lazyPrint();
            auto guard =
                    m_colour->guardColour(Colour::ResultError).engage(m_stream);
            if (m_sectionStack.size() > 1)
                m_stream << "\nNo assertions in section";
            else
                m_stream << "\nNo assertions in test case";
            m_stream << " '" << _sectionStats.sectionInfo.name << "'\n\n" << std::flush;
        }
        double dur = _sectionStats.durationInSeconds;
        if (shouldShowDuration(*m_config, dur)) {
            m_stream << getFormattedDuration(dur) << " s: " << _sectionStats.sectionInfo.name << '\n' << std::flush;
        }
        if (m_headerPrinted) {
            m_headerPrinted = false;
        }
        StreamingReporterBase::sectionEnded(_sectionStats);
    }

    void ConsoleReporter::benchmarkPreparing(StringRef name) {
        lazyPrintWithoutClosingBenchmarkTable();

        auto nameCol = TextFlow::Column(static_cast<std::string>( name ))
                .width(m_tablePrinter->columnInfos()[0].width - 2);

        bool firstLine = true;
        for (auto line: nameCol) {
            if (!firstLine)
                (*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
            else
                firstLine = false;

            (*m_tablePrinter) << line << ColumnBreak();
        }
    }

    void ConsoleReporter::benchmarkStarting(BenchmarkInfo const &info) {
        (*m_tablePrinter) << info.samples << ColumnBreak()
                          << info.iterations << ColumnBreak();
        if (!m_config->benchmarkNoAnalysis())
            (*m_tablePrinter) << Duration(info.estimatedDuration) << ColumnBreak();
    }

    void ConsoleReporter::benchmarkEnded(BenchmarkStats<> const &stats) {
        if (m_config->benchmarkNoAnalysis()) {
            (*m_tablePrinter) << Duration(stats.mean.point.count()) << ColumnBreak();
        }
        else {
            (*m_tablePrinter) << ColumnBreak()
                              << Duration(stats.mean.point.count()) << ColumnBreak()
                              << Duration(stats.mean.lower_bound.count()) << ColumnBreak()
                              << Duration(stats.mean.upper_bound.count()) << ColumnBreak() << ColumnBreak()
                              << Duration(stats.standardDeviation.point.count()) << ColumnBreak()
                              << Duration(stats.standardDeviation.lower_bound.count()) << ColumnBreak()
                              << Duration(stats.standardDeviation.upper_bound.count()) << ColumnBreak() << ColumnBreak()
                              << ColumnBreak() << ColumnBreak() << ColumnBreak();
        }
    }

    void ConsoleReporter::benchmarkFailed(StringRef error) {
        auto guard = m_colour->guardColour(Colour::Red).engage(m_stream);
        (*m_tablePrinter)
                << "Benchmark failed (" << error << ')'
                << ColumnBreak() << RowBreak();
    }

    void ConsoleReporter::testCaseEnded(TestCaseStats const &_testCaseStats) {
        m_tablePrinter->close();
        StreamingReporterBase::testCaseEnded(_testCaseStats);
        m_headerPrinted = false;
    }

    void ConsoleReporter::testRunEnded(TestRunStats const &_testRunStats) {
        printTotalsDivider(_testRunStats.totals);
        printTotals(_testRunStats.totals);
        m_stream << '\n' << std::flush;
        StreamingReporterBase::testRunEnded(_testRunStats);
    }

    void ConsoleReporter::testRunStarting(TestRunInfo const &_testInfo) {
        StreamingReporterBase::testRunStarting(_testInfo);
        if (m_config->testSpec().hasFilters()) {
            m_stream << m_colour->guardColour(Colour::BrightYellow) << "Filters: "
                     << serializeFilters(m_config->getTestsOrTags()) << '\n';
        }
        m_stream << "Randomness seeded to: " << m_config->rngSeed() << '\n';
    }

    void ConsoleReporter::lazyPrint() {

        m_tablePrinter->close();
        lazyPrintWithoutClosingBenchmarkTable();
    }

    void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable() {

        if (!m_testRunInfoPrinted) {
            lazyPrintRunInfo();
        }
        if (!m_headerPrinted) {
            printTestCaseAndSectionHeader();
            m_headerPrinted = true;
        }
    }

    void ConsoleReporter::lazyPrintRunInfo() {
        m_stream << '\n'
                 << lineOfChars('~') << '\n'
                 << m_colour->guardColour(Colour::SecondaryText)
                 << currentTestRunInfo.name << " is a Catch2 v" << libraryVersion()
                 << " host application.\n"
                 << "Run with -? for options\n\n";

        m_testRunInfoPrinted = true;
    }

    void ConsoleReporter::printTestCaseAndSectionHeader() {
        assert(!m_sectionStack.empty());
        printOpenHeader(currentTestCaseInfo->name);

        if (m_sectionStack.size() > 1) {
            auto guard = m_colour->guardColour(Colour::Headers).engage(m_stream);

            auto
                    it = m_sectionStack.begin() + 1, // Skip first section (test case)
            itEnd = m_sectionStack.end();
            for (; it != itEnd; ++it)
                printHeaderString(it->name, 2);
        }

        SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;


        m_stream << lineOfChars('-') << '\n'
                 << m_colour->guardColour(Colour::FileName) << lineInfo << '\n'
                 << lineOfChars('.') << "\n\n"
                 << std::flush;
    }

    void ConsoleReporter::printClosedHeader(std::string const &_name) {
        printOpenHeader(_name);
        m_stream << lineOfChars('.') << '\n';
    }

    void ConsoleReporter::printOpenHeader(std::string const &_name) {
        m_stream << lineOfChars('-') << '\n';
        {
            auto guard = m_colour->guardColour(Colour::Headers).engage(m_stream);
            printHeaderString(_name);
        }
    }

    void ConsoleReporter::printHeaderString(std::string const &_string, std::size_t indent) {
        // We want to get a bit fancy with line breaking here, so that subsequent
        // lines start after ":" if one is present, e.g.
        // ```
        // blablabla: Fancy
        //            linebreaking
        // ```
        // but we also want to avoid problems with overly long indentation causing
        // the text to take up too many lines, e.g.
        // ```
        // blablabla: F
        //            a
        //            n
        //            c
        //            y
        //            .
        //            .
        //            .
        // ```
        // So we limit the prefix indentation check to first quarter of the possible
        // width
        std::size_t idx = _string.find(": ");
        if (idx != std::string::npos && idx < CATCH_CONFIG_CONSOLE_WIDTH / 4) {
            idx += 2;
        }
        else {
            idx = 0;
        }
        m_stream << TextFlow::Column(_string)
                .indent(indent + idx)
                .initialIndent(indent)
                 << '\n';
    }

    struct SummaryColumn {

        SummaryColumn(std::string _label, Colour::Code _colour)
                : label(CATCH_MOVE(_label)),
                  colour(_colour) {}

        SummaryColumn addRow(std::uint64_t count) {
            ReusableStringStream rss;
            rss << count;
            std::string row = rss.str();
            for (auto &oldRow: rows) {
                while (oldRow.size() < row.size())
                    oldRow = ' ' + oldRow;
                while (oldRow.size() > row.size())
                    row = ' ' + row;
            }
            rows.push_back(row);
            return *this;
        }

        std::string label;
        Colour::Code colour;
        std::vector<std::string> rows;

    };

    void ConsoleReporter::printTotals(Totals const &totals) {
        if (totals.testCases.total() == 0) {
            m_stream << m_colour->guardColour(Colour::Warning)
                     << "No tests ran\n";
        }
        else if (totals.assertions.total() > 0 && totals.testCases.allPassed()) {
            m_stream << m_colour->guardColour(Colour::ResultSuccess)
                     << "All tests passed";
            m_stream << " ("
                     << pluralise(totals.assertions.passed, "assertion"_sr) << " in "
                     << pluralise(totals.testCases.passed, "test case"_sr) << ')'
                     << '\n';
        }
        else {

            std::vector<SummaryColumn> columns;
            columns.push_back(SummaryColumn("", Colour::None)
                                      .addRow(totals.testCases.total())
                                      .addRow(totals.assertions.total()));
            columns.push_back(SummaryColumn("passed", Colour::Success)
                                      .addRow(totals.testCases.passed)
                                      .addRow(totals.assertions.passed));
            columns.push_back(SummaryColumn("failed", Colour::ResultError)
                                      .addRow(totals.testCases.failed)
                                      .addRow(totals.assertions.failed));
            columns.push_back(SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
                                      .addRow(totals.testCases.failedButOk)
                                      .addRow(totals.assertions.failedButOk));

            printSummaryRow("test cases"_sr, columns, 0);
            printSummaryRow("assertions"_sr, columns, 1);
        }
    }

    void ConsoleReporter::printSummaryRow(StringRef label, std::vector<SummaryColumn> const &cols, std::size_t row) {
        for (auto col: cols) {
            std::string const &value = col.rows[row];
            if (col.label.empty()) {
                m_stream << label << ": ";
                if (value != "0") {
                    m_stream << value;
                }
                else {
                    m_stream << m_colour->guardColour(Colour::Warning)
                             << "- none -";
                }
            }
            else if (value != "0") {
                m_stream << m_colour->guardColour(Colour::LightGrey) << " | "
                         << m_colour->guardColour(col.colour) << value << ' '
                         << col.label;
            }
        }
        m_stream << '\n';
    }

    void ConsoleReporter::printTotalsDivider(Totals const &totals) {
        if (totals.testCases.total() > 0) {
            std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
            std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
            std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
            while (failedRatio + failedButOkRatio + passedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
                findMax(failedRatio, failedButOkRatio, passedRatio)++;
            while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
                findMax(failedRatio, failedButOkRatio, passedRatio)--;

            m_stream << m_colour->guardColour(Colour::Error)
                     << std::string(failedRatio, '=')
                     << m_colour->guardColour(Colour::ResultExpectedFailure)
                     << std::string(failedButOkRatio, '=');
            if (totals.testCases.allPassed()) {
                m_stream << m_colour->guardColour(Colour::ResultSuccess)
                         << std::string(passedRatio, '=');
            }
            else {
                m_stream << m_colour->guardColour(Colour::Success)
                         << std::string(passedRatio, '=');
            }
        }
        else {
            m_stream << m_colour->guardColour(Colour::Warning)
                     << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
        }
        m_stream << '\n';
    }

    void ConsoleReporter::printSummaryDivider() {
        m_stream << lineOfChars('-') << '\n';
    }

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

#if defined(__clang__)
#  pragma clang diagnostic pop
#endif


#include <algorithm>
#include <cassert>

namespace Catch {
    namespace {
        struct BySectionInfo {
            BySectionInfo(SectionInfo const &other) : m_other(other) {}

            BySectionInfo(BySectionInfo const &other) :
                    m_other(other.m_other) {}

            bool operator()(
                    Detail::unique_ptr<CumulativeReporterBase::SectionNode> const &
                    node) const {
                return (
                        (node->stats.sectionInfo.name == m_other.name) &&
                        (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
            }

            void operator=(BySectionInfo const &) = delete;

        private:
            SectionInfo const &m_other;
        };

    } // namespace

    namespace Detail {
        AssertionOrBenchmarkResult::AssertionOrBenchmarkResult(
                AssertionStats const &assertion) :
                m_assertion(assertion) {}

        AssertionOrBenchmarkResult::AssertionOrBenchmarkResult(
                BenchmarkStats<> const &benchmark) :
                m_benchmark(benchmark) {}

        bool AssertionOrBenchmarkResult::isAssertion() const {
            return m_assertion.some();
        }

        bool AssertionOrBenchmarkResult::isBenchmark() const {
            return m_benchmark.some();
        }

        AssertionStats const &AssertionOrBenchmarkResult::asAssertion() const {
            assert(m_assertion.some());

            return *m_assertion;
        }

        BenchmarkStats<> const &AssertionOrBenchmarkResult::asBenchmark() const {
            assert(m_benchmark.some());

            return *m_benchmark;
        }

    }

    CumulativeReporterBase::~CumulativeReporterBase() = default;

    void CumulativeReporterBase::benchmarkEnded(BenchmarkStats<> const &benchmarkStats) {
        m_sectionStack.back()->assertionsAndBenchmarks.emplace_back(benchmarkStats);
    }

    void
    CumulativeReporterBase::sectionStarting(SectionInfo const &sectionInfo) {
        SectionStats incompleteStats(sectionInfo, Counts(), 0, false);
        SectionNode *node;
        if (m_sectionStack.empty()) {
            if (!m_rootSection) {
                m_rootSection =
                        Detail::make_unique<SectionNode>(incompleteStats);
            }
            node = m_rootSection.get();
        }
        else {
            SectionNode &parentNode = *m_sectionStack.back();
            auto it = std::find_if(parentNode.childSections.begin(),
                                   parentNode.childSections.end(),
                                   BySectionInfo(sectionInfo));
            if (it == parentNode.childSections.end()) {
                auto newNode =
                        Detail::make_unique<SectionNode>(incompleteStats);
                node = newNode.get();
                parentNode.childSections.push_back(CATCH_MOVE(newNode));
            }
            else {
                node = it->get();
            }
        }

        m_deepestSection = node;
        m_sectionStack.push_back(node);
    }

    void CumulativeReporterBase::assertionEnded(
            AssertionStats const &assertionStats) {
        assert(!m_sectionStack.empty());
        // AssertionResult holds a pointer to a temporary DecomposedExpression,
        // which getExpandedExpression() calls to build the expression string.
        // Our section stack copy of the assertionResult will likely outlive the
        // temporary, so it must be expanded or discarded now to avoid calling
        // a destroyed object later.
        if (m_shouldStoreFailedAssertions &&
            !assertionStats.assertionResult.isOk()) {
            static_cast<void>(
                    assertionStats.assertionResult.getExpandedExpression());
        }
        if (m_shouldStoreSuccesfulAssertions &&
            assertionStats.assertionResult.isOk()) {
            static_cast<void>(
                    assertionStats.assertionResult.getExpandedExpression());
        }
        SectionNode &sectionNode = *m_sectionStack.back();
        sectionNode.assertionsAndBenchmarks.emplace_back(assertionStats);
    }

    void CumulativeReporterBase::sectionEnded(SectionStats const &sectionStats) {
        assert(!m_sectionStack.empty());
        SectionNode &node = *m_sectionStack.back();
        node.stats = sectionStats;
        m_sectionStack.pop_back();
    }

    void CumulativeReporterBase::testCaseEnded(
            TestCaseStats const &testCaseStats) {
        auto node = Detail::make_unique<TestCaseNode>(testCaseStats);
        assert(m_sectionStack.size() == 0);
        node->children.push_back(CATCH_MOVE(m_rootSection));
        m_testCases.push_back(CATCH_MOVE(node));

        assert(m_deepestSection);
        m_deepestSection->stdOut = testCaseStats.stdOut;
        m_deepestSection->stdErr = testCaseStats.stdErr;
    }


    void CumulativeReporterBase::testRunEnded(TestRunStats const &testRunStats) {
        assert(!m_testRun && "CumulativeReporterBase assumes there can only be one test run");
        m_testRun = Detail::make_unique<TestRunNode>(testRunStats);
        m_testRun->children.swap(m_testCases);
        testRunEndedCumulative();
    }

    bool CumulativeReporterBase::SectionNode::hasAnyAssertions() const {
        return std::any_of(
                assertionsAndBenchmarks.begin(),
                assertionsAndBenchmarks.end(),
                [](Detail::AssertionOrBenchmarkResult const &res) {
                    return res.isAssertion();
                });
    }

} // end namespace Catch




namespace Catch {

    void EventListenerBase::fatalErrorEncountered(StringRef) {}

    void EventListenerBase::benchmarkPreparing(StringRef) {}

    void EventListenerBase::benchmarkStarting(BenchmarkInfo const &) {}

    void EventListenerBase::benchmarkEnded(BenchmarkStats<> const &) {}

    void EventListenerBase::benchmarkFailed(StringRef) {}

    void EventListenerBase::assertionStarting(AssertionInfo const &) {}

    void EventListenerBase::assertionEnded(AssertionStats const &) {}

    void EventListenerBase::listReporters(
            std::vector<ReporterDescription> const &) {}

    void EventListenerBase::listListeners(
            std::vector<ListenerDescription> const &) {}

    void EventListenerBase::listTests(std::vector<TestCaseHandle> const &) {}

    void EventListenerBase::listTags(std::vector<TagInfo> const &) {}

    void EventListenerBase::noMatchingTestCases(StringRef) {}

    void EventListenerBase::reportInvalidTestSpec(StringRef) {}

    void EventListenerBase::testRunStarting(TestRunInfo const &) {}

    void EventListenerBase::testCaseStarting(TestCaseInfo const &) {}

    void EventListenerBase::testCasePartialStarting(TestCaseInfo const &, uint64_t) {}

    void EventListenerBase::sectionStarting(SectionInfo const &) {}

    void EventListenerBase::sectionEnded(SectionStats const &) {}

    void EventListenerBase::testCasePartialEnded(TestCaseStats const &, uint64_t) {}

    void EventListenerBase::testCaseEnded(TestCaseStats const &) {}

    void EventListenerBase::testRunEnded(TestRunStats const &) {}

    void EventListenerBase::skipTest(TestCaseInfo const &) {}
} // namespace Catch




#include <algorithm>
#include <cfloat>
#include <cstdio>
#include <ostream>
#include <iomanip>

namespace Catch {

    namespace {
        void listTestNamesOnly(std::ostream &out,
                               std::vector<TestCaseHandle> const &tests) {
            for (auto const &test: tests) {
                auto const &testCaseInfo = test.getTestCaseInfo();

                if (startsWith(testCaseInfo.name, '#')) {
                    out << '"' << testCaseInfo.name << '"';
                }
                else {
                    out << testCaseInfo.name;
                }

                out << '\n';
            }
            out << std::flush;
        }
    } // end unnamed namespace


    // Because formatting using c++ streams is stateful, drop down to C is
    // required Alternatively we could use stringstream, but its performance
    // is... not good.
    std::string getFormattedDuration(double duration) {
        // Max exponent + 1 is required to represent the whole part
        // + 1 for decimal point
        // + 3 for the 3 decimal places
        // + 1 for null terminator
        const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
        char buffer[maxDoubleSize];

        // Save previous errno, to prevent sprintf from overwriting it
        ErrnoGuard guard;
#ifdef _MSC_VER
                                                                                                                                size_t printedLength = static_cast<size_t>(
            sprintf_s( buffer, "%.3f", duration ) );
#else
        size_t printedLength = static_cast<size_t>(
                std::snprintf(buffer, maxDoubleSize, "%.3f", duration));
#endif
        return std::string(buffer, printedLength);
    }

    bool shouldShowDuration(IConfig const &config, double duration) {
        if (config.showDurations() == ShowDurations::Always) {
            return true;
        }
        if (config.showDurations() == ShowDurations::Never) {
            return false;
        }
        const double min = config.minDuration();
        return min >= 0 && duration >= min;
    }

    std::string serializeFilters(std::vector<std::string> const &filters) {
        // We add a ' ' separator between each filter
        size_t serialized_size = filters.size() - 1;
        for (auto const &filter: filters) {
            serialized_size += filter.size();
        }

        std::string serialized;
        serialized.reserve(serialized_size);
        bool first = true;

        for (auto const &filter: filters) {
            if (!first) {
                serialized.push_back(' ');
            }
            first = false;
            serialized.append(filter);
        }

        return serialized;
    }

    std::ostream &operator<<(std::ostream &out, lineOfChars value) {
        for (size_t idx = 0; idx < CATCH_CONFIG_CONSOLE_WIDTH - 1; ++idx) {
            out.put(value.c);
        }
        return out;
    }

    void
    defaultListReporters(std::ostream &out,
                         std::vector<ReporterDescription> const &descriptions,
                         Verbosity verbosity) {
        out << "Available reporters:\n";
        const auto maxNameLen =
                std::max_element(descriptions.begin(),
                                 descriptions.end(),
                                 [](ReporterDescription const &lhs,
                                    ReporterDescription const &rhs) {
                                     return lhs.name.size() < rhs.name.size();
                                 })
                        ->name.size();

        for (auto const &desc: descriptions) {
            if (verbosity == Verbosity::Quiet) {
                out << TextFlow::Column(desc.name)
                        .indent(2)
                        .width(5 + maxNameLen)
                    << '\n';
            }
            else {
                out << TextFlow::Column(desc.name + ':')
                               .indent(2)
                               .width(5 + maxNameLen) +
                       TextFlow::Column(desc.description)
                               .initialIndent(0)
                               .indent(2)
                               .width(CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8)
                    << '\n';
            }
        }
        out << '\n' << std::flush;
    }

    void defaultListListeners(std::ostream &out,
                              std::vector<ListenerDescription> const &descriptions) {
        out << "Registered listeners:\n";

        if (descriptions.empty()) {
            return;
        }

        const auto maxNameLen =
                std::max_element(descriptions.begin(),
                                 descriptions.end(),
                                 [](ListenerDescription const &lhs,
                                    ListenerDescription const &rhs) {
                                     return lhs.name.size() < rhs.name.size();
                                 })
                        ->name.size();

        for (auto const &desc: descriptions) {
            out << TextFlow::Column(static_cast<std::string>( desc.name ) +
                                    ':')
                           .indent(2)
                           .width(maxNameLen + 5) +
                   TextFlow::Column(desc.description)
                           .initialIndent(0)
                           .indent(2)
                           .width(CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8)
                << '\n';
        }

        out << '\n' << std::flush;
    }

    void defaultListTags(std::ostream &out,
                         std::vector<TagInfo> const &tags,
                         bool isFiltered) {
        if (isFiltered) {
            out << "Tags for matching test cases:\n";
        }
        else {
            out << "All available tags:\n";
        }

        for (auto const &tagCount: tags) {
            ReusableStringStream rss;
            rss << "  " << std::setw(2) << tagCount.count << "  ";
            auto str = rss.str();
            auto wrapper = TextFlow::Column(tagCount.all())
                    .initialIndent(0)
                    .indent(str.size())
                    .width(CATCH_CONFIG_CONSOLE_WIDTH - 10);
            out << str << wrapper << '\n';
        }
        out << pluralise(tags.size(), "tag"_sr) << "\n\n" << std::flush;
    }

    void defaultListTests(std::ostream &out, ColourImpl *streamColour, std::vector<TestCaseHandle> const &tests,
                          bool isFiltered, Verbosity verbosity) {
        // We special case this to provide the equivalent of old
        // `--list-test-names-only`, which could then be used by the
        // `--input-file` option.
        if (verbosity == Verbosity::Quiet) {
            listTestNamesOnly(out, tests);
            return;
        }

        if (isFiltered) {
            out << "Matching test cases:\n";
        }
        else {
            out << "All available test cases:\n";
        }

        for (auto const &test: tests) {
            auto const &testCaseInfo = test.getTestCaseInfo();
            Colour::Code colour = testCaseInfo.isHidden()
                                  ? Colour::SecondaryText
                                  : Colour::None;
            auto colourGuard = streamColour->guardColour(colour).engage(out);

            out << TextFlow::Column(testCaseInfo.name).indent(2) << '\n';
            if (verbosity >= Verbosity::High) {
                out << TextFlow::Column(Catch::Detail::stringify(testCaseInfo.lineInfo)).indent(4) << '\n';
            }
            if (!testCaseInfo.tags.empty() &&
                verbosity > Verbosity::Quiet) {
                out << TextFlow::Column(testCaseInfo.tagsAsString()).indent(6) << '\n';
            }
        }

        if (isFiltered) {
            out << pluralise(tests.size(), "matching test case"_sr);
        }
        else {
            out << pluralise(tests.size(), "test case"_sr);
        }
        out << "\n\n" << std::flush;
    }

} // namespace Catch




#include <cassert>
#include <ctime>
#include <algorithm>
#include <iomanip>

namespace Catch {

    namespace {
        std::string getCurrentTimestamp() {
            time_t rawtime;
            std::time(&rawtime);

            std::tm timeInfo = {};
#if defined (_MSC_VER) || defined (__MINGW32__)
            gmtime_s(&timeInfo, &rawtime);
#else
            gmtime_r(&rawtime, &timeInfo);
#endif

            auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
            char timeStamp[timeStampSize];
            const char *const fmt = "%Y-%m-%dT%H:%M:%SZ";

            std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);

            return std::string(timeStamp, timeStampSize - 1);
        }

        std::string fileNameTag(std::vector<Tag> const &tags) {
            auto it = std::find_if(begin(tags),
                                   end(tags),
                                   [](Tag const &tag) {
                                       return tag.original.size() > 0
                                              && tag.original[0] == '#';
                                   });
            if (it != tags.end()) {
                return static_cast<std::string>(
                        it->original.substr(1, it->original.size() - 1)
                );
            }
            return std::string();
        }

        // Formats the duration in seconds to 3 decimal places.
        // This is done because some genius defined Maven Surefire schema
        // in a way that only accepts 3 decimal places, and tools like
        // Jenkins use that schema for validation JUnit reporter output.
        std::string formatDuration(double seconds) {
            ReusableStringStream rss;
            rss << std::fixed << std::setprecision(3) << seconds;
            return rss.str();
        }

        static void normalizeNamespaceMarkers(std::string &str) {
            std::size_t pos = str.find("::");
            while (pos != str.npos) {
                str.replace(pos, 2, ".");
                pos += 1;
                pos = str.find("::", pos);
            }
        }

    } // anonymous namespace

    JunitReporter::JunitReporter(ReporterConfig &&_config)
            : CumulativeReporterBase(CATCH_MOVE(_config)),
              xml(m_stream) {
        m_preferences.shouldRedirectStdOut = true;
        m_preferences.shouldReportAllAssertions = true;
        m_shouldStoreSuccesfulAssertions = false;
    }

    std::string JunitReporter::getDescription() {
        return "Reports test results in an XML format that looks like Ant's junitreport target";
    }

    void JunitReporter::testRunStarting(TestRunInfo const &runInfo) {
        CumulativeReporterBase::testRunStarting(runInfo);
        xml.startElement("testsuites");
        suiteTimer.start();
        stdOutForSuite.clear();
        stdErrForSuite.clear();
        unexpectedExceptions = 0;
    }

    void JunitReporter::testCaseStarting(TestCaseInfo const &testCaseInfo) {
        m_okToFail = testCaseInfo.okToFail();
    }

    void JunitReporter::assertionEnded(AssertionStats const &assertionStats) {
        if (assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail)
            unexpectedExceptions++;
        CumulativeReporterBase::assertionEnded(assertionStats);
    }

    void JunitReporter::testCaseEnded(TestCaseStats const &testCaseStats) {
        stdOutForSuite += testCaseStats.stdOut;
        stdErrForSuite += testCaseStats.stdErr;
        CumulativeReporterBase::testCaseEnded(testCaseStats);
    }

    void JunitReporter::testRunEndedCumulative() {
        const auto suiteTime = suiteTimer.getElapsedSeconds();
        writeRun(*m_testRun, suiteTime);
        xml.endElement();
    }

    void JunitReporter::writeRun(TestRunNode const &testRunNode, double suiteTime) {
        XmlWriter::ScopedElement e = xml.scopedElement("testsuite");

        TestRunStats const &stats = testRunNode.value;
        xml.writeAttribute("name"_sr, stats.runInfo.name);
        xml.writeAttribute("errors"_sr, unexpectedExceptions);
        xml.writeAttribute("failures"_sr, stats.totals.assertions.failed - unexpectedExceptions);
        xml.writeAttribute("tests"_sr, stats.totals.assertions.total());
        xml.writeAttribute("hostname"_sr, "tbd"_sr); // !TBD
        if (m_config->showDurations() == ShowDurations::Never)
            xml.writeAttribute("time"_sr, ""_sr);
        else
            xml.writeAttribute("time"_sr, formatDuration(suiteTime));
        xml.writeAttribute("timestamp"_sr, getCurrentTimestamp());

        // Write properties
        {
            auto properties = xml.scopedElement("properties");
            xml.scopedElement("property")
                    .writeAttribute("name"_sr, "random-seed"_sr)
                    .writeAttribute("value"_sr, m_config->rngSeed());
            if (m_config->hasTestFilters()) {
                xml.scopedElement("property")
                        .writeAttribute("name"_sr, "filters"_sr)
                        .writeAttribute("value"_sr, serializeFilters(m_config->getTestsOrTags()));
            }
        }

        // Write test cases
        for (auto const &child: testRunNode.children)
            writeTestCase(*child);

        xml.scopedElement("system-out").writeText(trim(stdOutForSuite), XmlFormatting::Newline);
        xml.scopedElement("system-err").writeText(trim(stdErrForSuite), XmlFormatting::Newline);
    }

    void JunitReporter::writeTestCase(TestCaseNode const &testCaseNode) {
        TestCaseStats const &stats = testCaseNode.value;

        // All test cases have exactly one section - which represents the
        // test case itself. That section may have 0-n nested sections
        assert(testCaseNode.children.size() == 1);
        SectionNode const &rootSection = *testCaseNode.children.front();

        std::string className =
                static_cast<std::string>( stats.testInfo->className );

        if (className.empty()) {
            className = fileNameTag(stats.testInfo->tags);
            if (className.empty()) {
                className = "global";
            }
        }

        if (!m_config->name().empty())
            className = static_cast<std::string>(m_config->name()) + '.' + className;

        normalizeNamespaceMarkers(className);

        writeSection(className, "", rootSection, stats.testInfo->okToFail());
    }

    void JunitReporter::writeSection(std::string const &className,
                                     std::string const &rootName,
                                     SectionNode const &sectionNode,
                                     bool testOkToFail) {
        std::string name = trim(sectionNode.stats.sectionInfo.name);
        if (!rootName.empty())
            name = rootName + '/' + name;

        if (sectionNode.hasAnyAssertions()
            || !sectionNode.stdOut.empty()
            || !sectionNode.stdErr.empty()) {
            XmlWriter::ScopedElement e = xml.scopedElement("testcase");
            if (className.empty()) {
                xml.writeAttribute("classname"_sr, name);
                xml.writeAttribute("name"_sr, "root"_sr);
            }
            else {
                xml.writeAttribute("classname"_sr, className);
                xml.writeAttribute("name"_sr, name);
            }
            xml.writeAttribute("time"_sr, formatDuration(sectionNode.stats.durationInSeconds));
            // This is not ideal, but it should be enough to mimic gtest's
            // junit output.
            // Ideally the JUnit reporter would also handle `skipTest`
            // events and write those out appropriately.
            xml.writeAttribute("status"_sr, "run"_sr);

            if (sectionNode.stats.assertions.failedButOk) {
                xml.scopedElement("skipped")
                        .writeAttribute("message", "TEST_CASE tagged with !mayfail");
            }

            writeAssertions(sectionNode);


            if (!sectionNode.stdOut.empty())
                xml.scopedElement("system-out").writeText(trim(sectionNode.stdOut), XmlFormatting::Newline);
            if (!sectionNode.stdErr.empty())
                xml.scopedElement("system-err").writeText(trim(sectionNode.stdErr), XmlFormatting::Newline);
        }
        for (auto const &childNode: sectionNode.childSections)
            if (className.empty())
                writeSection(name, "", *childNode, testOkToFail);
            else
                writeSection(className, name, *childNode, testOkToFail);
    }

    void JunitReporter::writeAssertions(SectionNode const &sectionNode) {
        for (auto const &assertionOrBenchmark: sectionNode.assertionsAndBenchmarks) {
            if (assertionOrBenchmark.isAssertion()) {
                writeAssertion(assertionOrBenchmark.asAssertion());
            }
        }
    }

    void JunitReporter::writeAssertion(AssertionStats const &stats) {
        AssertionResult const &result = stats.assertionResult;
        if (!result.isOk()) {
            std::string elementName;
            switch (result.getResultType()) {
                case ResultWas::ThrewException:
                case ResultWas::FatalErrorCondition:elementName = "error";
                    break;
                case ResultWas::ExplicitFailure:
                case ResultWas::ExpressionFailed:
                case ResultWas::DidntThrowException:elementName = "failure";
                    break;

                    // We should never see these here:
                case ResultWas::Info:
                case ResultWas::Warning:
                case ResultWas::Ok:
                case ResultWas::Unknown:
                case ResultWas::FailureBit:
                case ResultWas::Exception:elementName = "internalError";
                    break;
            }

            XmlWriter::ScopedElement e = xml.scopedElement(elementName);

            xml.writeAttribute("message"_sr, result.getExpression());
            xml.writeAttribute("type"_sr, result.getTestMacroName());

            ReusableStringStream rss;
            if (stats.totals.assertions.total() > 0) {
                rss << "FAILED" << ":\n";
                if (result.hasExpression()) {
                    rss << "  ";
                    rss << result.getExpressionInMacro();
                    rss << '\n';
                }
                if (result.hasExpandedExpression()) {
                    rss << "with expansion:\n";
                    rss << TextFlow::Column(result.getExpandedExpression()).indent(2) << '\n';
                }
            }
            else {
                rss << '\n';
            }

            if (!result.getMessage().empty())
                rss << result.getMessage() << '\n';
            for (auto const &msg: stats.infoMessages)
                if (msg.type == ResultWas::Info)
                    rss << msg.message << '\n';

            rss << "at " << result.getSourceInfo();
            xml.writeText(rss.str(), XmlFormatting::Newline);
        }
    }

} // end namespace Catch




#include <ostream>

namespace Catch {
    void MultiReporter::updatePreferences(IEventListener const &reporterish) {
        m_preferences.shouldRedirectStdOut |=
                reporterish.getPreferences().shouldRedirectStdOut;
        m_preferences.shouldReportAllAssertions |=
                reporterish.getPreferences().shouldReportAllAssertions;
    }

    void MultiReporter::addListener(IEventListenerPtr &&listener) {
        updatePreferences(*listener);
        m_reporterLikes.insert(m_reporterLikes.begin() + m_insertedListeners, CATCH_MOVE(listener));
        ++m_insertedListeners;
    }

    void MultiReporter::addReporter(IEventListenerPtr &&reporter) {
        updatePreferences(*reporter);

        // We will need to output the captured stdout if there are reporters
        // that do not want it captured.
        // We do not consider listeners, because it is generally assumed that
        // listeners are output-transparent, even though they can ask for stdout
        // capture to do something with it.
        m_haveNoncapturingReporters |= !reporter->getPreferences().shouldRedirectStdOut;

        // Reporters can always be placed to the back without breaking the
        // reporting order
        m_reporterLikes.push_back(CATCH_MOVE(reporter));
    }

    void MultiReporter::noMatchingTestCases(StringRef unmatchedSpec) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->noMatchingTestCases(unmatchedSpec);
        }
    }

    void MultiReporter::fatalErrorEncountered(StringRef error) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->fatalErrorEncountered(error);
        }
    }

    void MultiReporter::reportInvalidTestSpec(StringRef arg) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->reportInvalidTestSpec(arg);
        }
    }

    void MultiReporter::benchmarkPreparing(StringRef name) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->benchmarkPreparing(name);
        }
    }

    void MultiReporter::benchmarkStarting(BenchmarkInfo const &benchmarkInfo) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->benchmarkStarting(benchmarkInfo);
        }
    }

    void MultiReporter::benchmarkEnded(BenchmarkStats<> const &benchmarkStats) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->benchmarkEnded(benchmarkStats);
        }
    }

    void MultiReporter::benchmarkFailed(StringRef error) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->benchmarkFailed(error);
        }
    }

    void MultiReporter::testRunStarting(TestRunInfo const &testRunInfo) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->testRunStarting(testRunInfo);
        }
    }

    void MultiReporter::testCaseStarting(TestCaseInfo const &testInfo) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->testCaseStarting(testInfo);
        }
    }

    void
    MultiReporter::testCasePartialStarting(TestCaseInfo const &testInfo,
                                           uint64_t partNumber) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->testCasePartialStarting(testInfo, partNumber);
        }
    }

    void MultiReporter::sectionStarting(SectionInfo const &sectionInfo) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->sectionStarting(sectionInfo);
        }
    }

    void MultiReporter::assertionStarting(AssertionInfo const &assertionInfo) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->assertionStarting(assertionInfo);
        }
    }

    // The return value indicates if the messages buffer should be cleared:
    void MultiReporter::assertionEnded(AssertionStats const &assertionStats) {
        const bool reportByDefault =
                assertionStats.assertionResult.getResultType() != ResultWas::Ok ||
                m_config->includeSuccessfulResults();

        for (auto &reporterish: m_reporterLikes) {
            if (reportByDefault ||
                reporterish->getPreferences().shouldReportAllAssertions) {
                reporterish->assertionEnded(assertionStats);
            }
        }
    }

    void MultiReporter::sectionEnded(SectionStats const &sectionStats) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->sectionEnded(sectionStats);
        }
    }

    void MultiReporter::testCasePartialEnded(TestCaseStats const &testStats,
                                             uint64_t partNumber) {
        if (m_preferences.shouldRedirectStdOut &&
            m_haveNoncapturingReporters) {
            if (!testStats.stdOut.empty()) {
                Catch::cout() << testStats.stdOut << std::flush;
            }
            if (!testStats.stdErr.empty()) {
                Catch::cerr() << testStats.stdErr << std::flush;
            }
        }

        for (auto &reporterish: m_reporterLikes) {
            reporterish->testCasePartialEnded(testStats, partNumber);
        }
    }

    void MultiReporter::testCaseEnded(TestCaseStats const &testCaseStats) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->testCaseEnded(testCaseStats);
        }
    }

    void MultiReporter::testRunEnded(TestRunStats const &testRunStats) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->testRunEnded(testRunStats);
        }
    }


    void MultiReporter::skipTest(TestCaseInfo const &testInfo) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->skipTest(testInfo);
        }
    }

    void MultiReporter::listReporters(std::vector<ReporterDescription> const &descriptions) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->listReporters(descriptions);
        }
    }

    void MultiReporter::listListeners(
            std::vector<ListenerDescription> const &descriptions) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->listListeners(descriptions);
        }
    }

    void MultiReporter::listTests(std::vector<TestCaseHandle> const &tests) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->listTests(tests);
        }
    }

    void MultiReporter::listTags(std::vector<TagInfo> const &tags) {
        for (auto &reporterish: m_reporterLikes) {
            reporterish->listTags(tags);
        }
    }

} // end namespace Catch





namespace Catch {
    namespace Detail {

        void registerReporterImpl(std::string const &name,
                                  IReporterFactoryPtr reporterPtr) {
            CATCH_TRY {
                getMutableRegistryHub().registerReporter(
                        name, CATCH_MOVE(reporterPtr));
            }
            CATCH_CATCH_ALL {
                // Do not throw when constructing global objects, instead
                // register the exception to be processed later
                getMutableRegistryHub().registerStartupException();
            }
        }

    } // namespace Detail
} // namespace Catch




#include <map>

namespace Catch {

    namespace {
        std::string createRngSeedString(uint32_t seed) {
            ReusableStringStream sstr;
            sstr << "rng-seed=" << seed;
            return sstr.str();
        }
    }

    void SonarQubeReporter::testRunStarting(TestRunInfo const &testRunInfo) {
        CumulativeReporterBase::testRunStarting(testRunInfo);

        xml.writeComment(createRngSeedString(m_config->rngSeed()));
        xml.startElement("testExecutions");
        xml.writeAttribute("version"_sr, '1');
    }

    void SonarQubeReporter::writeRun(TestRunNode const &runNode) {
        std::map<std::string, std::vector<TestCaseNode const *>> testsPerFile;

        for (auto const &child: runNode.children) {
            testsPerFile[child->value.testInfo->lineInfo.file].push_back(
                    child.get());
        }

        for (auto const &kv: testsPerFile) {
            writeTestFile(kv.first, kv.second);
        }
    }

    void SonarQubeReporter::writeTestFile(std::string const &filename,
                                          std::vector<TestCaseNode const *> const &testCaseNodes) {
        XmlWriter::ScopedElement e = xml.scopedElement("file");
        xml.writeAttribute("path"_sr, filename);

        for (auto const &child: testCaseNodes)
            writeTestCase(*child);
    }

    void SonarQubeReporter::writeTestCase(TestCaseNode const &testCaseNode) {
        // All test cases have exactly one section - which represents the
        // test case itself. That section may have 0-n nested sections
        assert(testCaseNode.children.size() == 1);
        SectionNode const &rootSection = *testCaseNode.children.front();
        writeSection("", rootSection, testCaseNode.value.testInfo->okToFail());
    }

    void SonarQubeReporter::writeSection(std::string const &rootName, SectionNode const &sectionNode, bool okToFail) {
        std::string name = trim(sectionNode.stats.sectionInfo.name);
        if (!rootName.empty())
            name = rootName + '/' + name;

        if (sectionNode.hasAnyAssertions()
            || !sectionNode.stdOut.empty()
            || !sectionNode.stdErr.empty()) {
            XmlWriter::ScopedElement e = xml.scopedElement("testCase");
            xml.writeAttribute("name"_sr, name);
            xml.writeAttribute("duration"_sr, static_cast<long>(sectionNode.stats.durationInSeconds * 1000));

            writeAssertions(sectionNode, okToFail);
        }

        for (auto const &childNode: sectionNode.childSections)
            writeSection(name, *childNode, okToFail);
    }

    void SonarQubeReporter::writeAssertions(SectionNode const &sectionNode, bool okToFail) {
        for (auto const &assertionOrBenchmark: sectionNode.assertionsAndBenchmarks) {
            if (assertionOrBenchmark.isAssertion()) {
                writeAssertion(assertionOrBenchmark.asAssertion(), okToFail);
            }
        }
    }

    void SonarQubeReporter::writeAssertion(AssertionStats const &stats, bool okToFail) {
        AssertionResult const &result = stats.assertionResult;
        if (!result.isOk()) {
            std::string elementName;
            if (okToFail) {
                elementName = "skipped";
            }
            else {
                switch (result.getResultType()) {
                    case ResultWas::ThrewException:
                    case ResultWas::FatalErrorCondition:elementName = "error";
                        break;
                    case ResultWas::ExplicitFailure:elementName = "failure";
                        break;
                    case ResultWas::ExpressionFailed:elementName = "failure";
                        break;
                    case ResultWas::DidntThrowException:elementName = "failure";
                        break;

                        // We should never see these here:
                    case ResultWas::Info:
                    case ResultWas::Warning:
                    case ResultWas::Ok:
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:elementName = "internalError";
                        break;
                }
            }

            XmlWriter::ScopedElement e = xml.scopedElement(elementName);

            ReusableStringStream messageRss;
            messageRss << result.getTestMacroName() << '(' << result.getExpression() << ')';
            xml.writeAttribute("message"_sr, messageRss.str());

            ReusableStringStream textRss;
            if (stats.totals.assertions.total() > 0) {
                textRss << "FAILED:\n";
                if (result.hasExpression()) {
                    textRss << '\t' << result.getExpressionInMacro() << '\n';
                }
                if (result.hasExpandedExpression()) {
                    textRss << "with expansion:\n\t" << result.getExpandedExpression() << '\n';
                }
            }

            if (!result.getMessage().empty())
                textRss << result.getMessage() << '\n';

            for (auto const &msg: stats.infoMessages)
                if (msg.type == ResultWas::Info)
                    textRss << msg.message << '\n';

            textRss << "at " << result.getSourceInfo();
            xml.writeText(textRss.str(), XmlFormatting::Newline);
        }
    }

} // end namespace Catch



namespace Catch {

    StreamingReporterBase::~StreamingReporterBase() = default;

    void
    StreamingReporterBase::testRunStarting(TestRunInfo const &_testRunInfo) {
        currentTestRunInfo = _testRunInfo;
    }

    void StreamingReporterBase::testRunEnded(TestRunStats const &) {
        currentTestCaseInfo = nullptr;
    }

} // end namespace Catch



#include <algorithm>
#include <iterator>
#include <ostream>

namespace Catch {

    namespace {
        // Yes, this has to be outside the class and namespaced by naming.
        // Making older compiler happy is hard.
        static constexpr StringRef tapFailedString = "not ok"_sr;
        static constexpr StringRef tapPassedString = "ok"_sr;
        static constexpr Colour::Code tapDimColour = Colour::FileName;

        class TapAssertionPrinter {
        public:
            TapAssertionPrinter &operator=(TapAssertionPrinter const &) = delete;

            TapAssertionPrinter(TapAssertionPrinter const &) = delete;

            TapAssertionPrinter(std::ostream &_stream, AssertionStats const &_stats, std::size_t _counter,
                                ColourImpl *colour_)
                    : stream(_stream), result(_stats.assertionResult), messages(_stats.infoMessages),
                      itMessage(_stats.infoMessages.begin()), printInfoMessages(true), counter(_counter),
                      colourImpl(colour_) {}

            void print() {
                itMessage = messages.begin();

                switch (result.getResultType()) {
                    case ResultWas::Ok:printResultType(tapPassedString);
                        printOriginalExpression();
                        printReconstructedExpression();
                        if (!result.hasExpression())
                            printRemainingMessages(Colour::None);
                        else
                            printRemainingMessages();
                        break;
                    case ResultWas::ExpressionFailed:
                        if (result.isOk()) {
                            printResultType(tapPassedString);
                        }
                        else {
                            printResultType(tapFailedString);
                        }
                        printOriginalExpression();
                        printReconstructedExpression();
                        if (result.isOk()) {
                            printIssue(" # TODO");
                        }
                        printRemainingMessages();
                        break;
                    case ResultWas::ThrewException:printResultType(tapFailedString);
                        printIssue("unexpected exception with message:"_sr);
                        printMessage();
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::FatalErrorCondition:printResultType(tapFailedString);
                        printIssue("fatal error condition with message:"_sr);
                        printMessage();
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::DidntThrowException:printResultType(tapFailedString);
                        printIssue("expected exception, got none"_sr);
                        printExpressionWas();
                        printRemainingMessages();
                        break;
                    case ResultWas::Info:printResultType("info"_sr);
                        printMessage();
                        printRemainingMessages();
                        break;
                    case ResultWas::Warning:printResultType("warning"_sr);
                        printMessage();
                        printRemainingMessages();
                        break;
                    case ResultWas::ExplicitFailure:printResultType(tapFailedString);
                        printIssue("explicitly"_sr);
                        printRemainingMessages(Colour::None);
                        break;
                        // These cases are here to prevent compiler warnings
                    case ResultWas::Unknown:
                    case ResultWas::FailureBit:
                    case ResultWas::Exception:printResultType("** internal error **"_sr);
                        break;
                }
            }

        private:
            void printResultType(StringRef passOrFail) const {
                if (!passOrFail.empty()) {
                    stream << passOrFail << ' ' << counter << " -";
                }
            }

            void printIssue(StringRef issue) const {
                stream << ' ' << issue;
            }

            void printExpressionWas() {
                if (result.hasExpression()) {
                    stream << ';';
                    stream << colourImpl->guardColour(tapDimColour)
                           << " expression was:";
                    printOriginalExpression();
                }
            }

            void printOriginalExpression() const {
                if (result.hasExpression()) {
                    stream << ' ' << result.getExpression();
                }
            }

            void printReconstructedExpression() const {
                if (result.hasExpandedExpression()) {
                    stream << colourImpl->guardColour(tapDimColour) << " for: ";

                    std::string expr = result.getExpandedExpression();
                    std::replace(expr.begin(), expr.end(), '\n', ' ');
                    stream << expr;
                }
            }

            void printMessage() {
                if (itMessage != messages.end()) {
                    stream << " '" << itMessage->message << '\'';
                    ++itMessage;
                }
            }

            void printRemainingMessages(Colour::Code colour = tapDimColour) {
                if (itMessage == messages.end()) {
                    return;
                }

                // using messages.end() directly (or auto) yields compilation error:
                std::vector<MessageInfo>::const_iterator itEnd = messages.end();
                const std::size_t N = static_cast<std::size_t>(std::distance(itMessage, itEnd));

                stream << colourImpl->guardColour(colour) << " with "
                       << pluralise(N, "message"_sr) << ':';

                for (; itMessage != itEnd;) {
                    // If this assertion is a warning ignore any INFO messages
                    if (printInfoMessages || itMessage->type != ResultWas::Info) {
                        stream << " '" << itMessage->message << '\'';
                        if (++itMessage != itEnd) {
                            stream << colourImpl->guardColour(tapDimColour) << " and";
                        }
                    }
                }
            }

        private:
            std::ostream &stream;
            AssertionResult const &result;
            std::vector<MessageInfo> messages;
            std::vector<MessageInfo>::const_iterator itMessage;
            bool printInfoMessages;
            std::size_t counter;
            ColourImpl *colourImpl;
        };

    } // End anonymous namespace

    void TAPReporter::testRunStarting(TestRunInfo const &) {
        m_stream << "# rng-seed: " << m_config->rngSeed() << '\n';
    }

    void TAPReporter::noMatchingTestCases(StringRef unmatchedSpec) {
        m_stream << "# No test cases matched '" << unmatchedSpec << "'\n";
    }

    void TAPReporter::assertionEnded(AssertionStats const &_assertionStats) {
        ++counter;

        m_stream << "# " << currentTestCaseInfo->name << '\n';
        TapAssertionPrinter printer(m_stream, _assertionStats, counter, m_colour.get());
        printer.print();

        m_stream << '\n' << std::flush;
    }

    void TAPReporter::testRunEnded(TestRunStats const &_testRunStats) {
        m_stream << "1.." << _testRunStats.totals.assertions.total();
        if (_testRunStats.totals.testCases.total() == 0) {
            m_stream << " # Skipped: No tests ran.";
        }
        m_stream << "\n\n" << std::flush;
        StreamingReporterBase::testRunEnded(_testRunStats);
    }


} // end namespace Catch




#include <cassert>
#include <ostream>

namespace Catch {

    namespace {
        // if string has a : in first line will set indent to follow it on
        // subsequent lines
        void printHeaderString(std::ostream &os, std::string const &_string, std::size_t indent = 0) {
            std::size_t i = _string.find(": ");
            if (i != std::string::npos)
                i += 2;
            else
                i = 0;
            os << TextFlow::Column(_string)
                    .indent(indent + i)
                    .initialIndent(indent) << '\n';
        }

        std::string escape(StringRef str) {
            std::string escaped = static_cast<std::string>(str);
            replaceInPlace(escaped, "|", "||");
            replaceInPlace(escaped, "'", "|'");
            replaceInPlace(escaped, "\n", "|n");
            replaceInPlace(escaped, "\r", "|r");
            replaceInPlace(escaped, "[", "|[");
            replaceInPlace(escaped, "]", "|]");
            return escaped;
        }
    } // end anonymous namespace


    TeamCityReporter::~TeamCityReporter() {}

    void TeamCityReporter::testRunStarting(TestRunInfo const &runInfo) {
        m_stream << "##teamcity[testSuiteStarted name='" << escape(runInfo.name)
                 << "']\n";
    }

    void TeamCityReporter::testRunEnded(TestRunStats const &runStats) {
        m_stream << "##teamcity[testSuiteFinished name='"
                 << escape(runStats.runInfo.name) << "']\n";
    }

    void TeamCityReporter::assertionEnded(AssertionStats const &assertionStats) {
        AssertionResult const &result = assertionStats.assertionResult;
        if (!result.isOk()) {

            ReusableStringStream msg;
            if (!m_headerPrintedForThisSection)
                printSectionHeader(msg.get());
            m_headerPrintedForThisSection = true;

            msg << result.getSourceInfo() << '\n';

            switch (result.getResultType()) {
                case ResultWas::ExpressionFailed:msg << "expression failed";
                    break;
                case ResultWas::ThrewException:msg << "unexpected exception";
                    break;
                case ResultWas::FatalErrorCondition:msg << "fatal error condition";
                    break;
                case ResultWas::DidntThrowException:msg << "no exception was thrown where one was expected";
                    break;
                case ResultWas::ExplicitFailure:msg << "explicit failure";
                    break;

                    // We shouldn't get here because of the isOk() test
                case ResultWas::Ok:
                case ResultWas::Info:
                case ResultWas::Warning:CATCH_ERROR("Internal error in TeamCity reporter");
                    // These cases are here to prevent compiler warnings
                case ResultWas::Unknown:
                case ResultWas::FailureBit:
                case ResultWas::Exception:CATCH_ERROR("Not implemented");
            }
            if (assertionStats.infoMessages.size() == 1)
                msg << " with message:";
            if (assertionStats.infoMessages.size() > 1)
                msg << " with messages:";
            for (auto const &messageInfo: assertionStats.infoMessages)
                msg << "\n  \"" << messageInfo.message << '"';


            if (result.hasExpression()) {
                msg <<
                    "\n  " << result.getExpressionInMacro() << "\n"
                                                               "with expansion:\n"
                                                               "  " << result.getExpandedExpression() << '\n';
            }

            if (currentTestCaseInfo->okToFail()) {
                msg << "- failure ignore as test marked as 'ok to fail'\n";
                m_stream << "##teamcity[testIgnored"
                         << " name='" << escape(currentTestCaseInfo->name) << '\''
                         << " message='" << escape(msg.str()) << '\''
                         << "]\n";
            }
            else {
                m_stream << "##teamcity[testFailed"
                         << " name='" << escape(currentTestCaseInfo->name) << '\''
                         << " message='" << escape(msg.str()) << '\''
                         << "]\n";
            }
        }
        m_stream.flush();
    }

    void TeamCityReporter::testCaseStarting(TestCaseInfo const &testInfo) {
        m_testTimer.start();
        StreamingReporterBase::testCaseStarting(testInfo);
        m_stream << "##teamcity[testStarted name='"
                 << escape(testInfo.name) << "']\n";
        m_stream.flush();
    }

    void TeamCityReporter::testCaseEnded(TestCaseStats const &testCaseStats) {
        StreamingReporterBase::testCaseEnded(testCaseStats);
        auto const &testCaseInfo = *testCaseStats.testInfo;
        if (!testCaseStats.stdOut.empty())
            m_stream << "##teamcity[testStdOut name='"
                     << escape(testCaseInfo.name)
                     << "' out='" << escape(testCaseStats.stdOut) << "']\n";
        if (!testCaseStats.stdErr.empty())
            m_stream << "##teamcity[testStdErr name='"
                     << escape(testCaseInfo.name)
                     << "' out='" << escape(testCaseStats.stdErr) << "']\n";
        m_stream << "##teamcity[testFinished name='"
                 << escape(testCaseInfo.name) << "' duration='"
                 << m_testTimer.getElapsedMilliseconds() << "']\n";
        m_stream.flush();
    }

    void TeamCityReporter::printSectionHeader(std::ostream &os) {
        assert(!m_sectionStack.empty());

        if (m_sectionStack.size() > 1) {
            os << lineOfChars('-') << '\n';

            std::vector<SectionInfo>::const_iterator
                    it = m_sectionStack.begin() + 1, // Skip first section (test case)
            itEnd = m_sectionStack.end();
            for (; it != itEnd; ++it)
                printHeaderString(os, it->name);
            os << lineOfChars('-') << '\n';
        }

        SourceLineInfo lineInfo = m_sectionStack.front().lineInfo;

        os << lineInfo << '\n';
        os << lineOfChars('.') << "\n\n";
    }

} // end namespace Catch




#if defined(_MSC_VER)
                                                                                                                        #pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
                              // Note that 4062 (not all labels are handled
                              // and default is missing) is enabled
#endif

namespace Catch {
    XmlReporter::XmlReporter(ReporterConfig &&_config)
            : StreamingReporterBase(CATCH_MOVE(_config)),
              m_xml(m_stream) {
        m_preferences.shouldRedirectStdOut = true;
        m_preferences.shouldReportAllAssertions = true;
    }

    XmlReporter::~XmlReporter() = default;

    std::string XmlReporter::getDescription() {
        return "Reports test results as an XML document";
    }

    std::string XmlReporter::getStylesheetRef() const {
        return std::string();
    }

    void XmlReporter::writeSourceInfo(SourceLineInfo const &sourceInfo) {
        m_xml
                .writeAttribute("filename"_sr, sourceInfo.file)
                .writeAttribute("line"_sr, sourceInfo.line);
    }

    void XmlReporter::testRunStarting(TestRunInfo const &testInfo) {
        StreamingReporterBase::testRunStarting(testInfo);
        std::string stylesheetRef = getStylesheetRef();
        if (!stylesheetRef.empty())
            m_xml.writeStylesheetRef(stylesheetRef);
        m_xml.startElement("Catch2TestRun")
                .writeAttribute("name"_sr, m_config->name())
                .writeAttribute("rng-seed"_sr, m_config->rngSeed())
                .writeAttribute("catch2-version"_sr, libraryVersion());
        if (m_config->testSpec().hasFilters())
            m_xml.writeAttribute("filters"_sr, serializeFilters(m_config->getTestsOrTags()));
    }

    void XmlReporter::testCaseStarting(TestCaseInfo const &testInfo) {
        StreamingReporterBase::testCaseStarting(testInfo);
        m_xml.startElement("TestCase")
                .writeAttribute("name"_sr, trim(testInfo.name))
                .writeAttribute("tags"_sr, testInfo.tagsAsString());

        writeSourceInfo(testInfo.lineInfo);

        if (m_config->showDurations() == ShowDurations::Always)
            m_testCaseTimer.start();
        m_xml.ensureTagClosed();
    }

    void XmlReporter::sectionStarting(SectionInfo const &sectionInfo) {
        StreamingReporterBase::sectionStarting(sectionInfo);
        if (m_sectionDepth++ > 0) {
            m_xml.startElement("Section")
                    .writeAttribute("name"_sr, trim(sectionInfo.name));
            writeSourceInfo(sectionInfo.lineInfo);
            m_xml.ensureTagClosed();
        }
    }

    void XmlReporter::assertionStarting(AssertionInfo const &) {}

    void XmlReporter::assertionEnded(AssertionStats const &assertionStats) {

        AssertionResult const &result = assertionStats.assertionResult;

        bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

        if (includeResults || result.getResultType() == ResultWas::Warning) {
            // Print any info messages in <Info> tags.
            for (auto const &msg: assertionStats.infoMessages) {
                if (msg.type == ResultWas::Info && includeResults) {
                    m_xml.scopedElement("Info")
                            .writeText(msg.message);
                }
                else if (msg.type == ResultWas::Warning) {
                    m_xml.scopedElement("Warning")
                            .writeText(msg.message);
                }
            }
        }

        // Drop out if result was successful but we're not printing them.
        if (!includeResults && result.getResultType() != ResultWas::Warning)
            return;


        // Print the expression if there is one.
        if (result.hasExpression()) {
            m_xml.startElement("Expression")
                    .writeAttribute("success"_sr, result.succeeded())
                    .writeAttribute("type"_sr, result.getTestMacroName());

            writeSourceInfo(result.getSourceInfo());

            m_xml.scopedElement("Original")
                    .writeText(result.getExpression());
            m_xml.scopedElement("Expanded")
                    .writeText(result.getExpandedExpression());
        }

        // And... Print a result applicable to each result type.
        switch (result.getResultType()) {
            case ResultWas::ThrewException:m_xml.startElement("Exception");
                writeSourceInfo(result.getSourceInfo());
                m_xml.writeText(result.getMessage());
                m_xml.endElement();
                break;
            case ResultWas::FatalErrorCondition:m_xml.startElement("FatalErrorCondition");
                writeSourceInfo(result.getSourceInfo());
                m_xml.writeText(result.getMessage());
                m_xml.endElement();
                break;
            case ResultWas::Info:
                m_xml.scopedElement("Info")
                        .writeText(result.getMessage());
                break;
            case ResultWas::Warning:
                // Warning will already have been written
                break;
            case ResultWas::ExplicitFailure:m_xml.startElement("Failure");
                writeSourceInfo(result.getSourceInfo());
                m_xml.writeText(result.getMessage());
                m_xml.endElement();
                break;
            default:break;
        }

        if (result.hasExpression())
            m_xml.endElement();
    }

    void XmlReporter::sectionEnded(SectionStats const &sectionStats) {
        StreamingReporterBase::sectionEnded(sectionStats);
        if (--m_sectionDepth > 0) {
            XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResults");
            e.writeAttribute("successes"_sr, sectionStats.assertions.passed);
            e.writeAttribute("failures"_sr, sectionStats.assertions.failed);
            e.writeAttribute("expectedFailures"_sr, sectionStats.assertions.failedButOk);

            if (m_config->showDurations() == ShowDurations::Always)
                e.writeAttribute("durationInSeconds"_sr, sectionStats.durationInSeconds);

            m_xml.endElement();
        }
    }

    void XmlReporter::testCaseEnded(TestCaseStats const &testCaseStats) {
        StreamingReporterBase::testCaseEnded(testCaseStats);
        XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResult");
        e.writeAttribute("success"_sr, testCaseStats.totals.assertions.allOk());

        if (m_config->showDurations() == ShowDurations::Always)
            e.writeAttribute("durationInSeconds"_sr, m_testCaseTimer.getElapsedSeconds());

        if (!testCaseStats.stdOut.empty())
            m_xml.scopedElement("StdOut").writeText(trim(testCaseStats.stdOut), XmlFormatting::Newline);
        if (!testCaseStats.stdErr.empty())
            m_xml.scopedElement("StdErr").writeText(trim(testCaseStats.stdErr), XmlFormatting::Newline);

        m_xml.endElement();
    }

    void XmlReporter::testRunEnded(TestRunStats const &testRunStats) {
        StreamingReporterBase::testRunEnded(testRunStats);
        m_xml.scopedElement("OverallResults")
                .writeAttribute("successes"_sr, testRunStats.totals.assertions.passed)
                .writeAttribute("failures"_sr, testRunStats.totals.assertions.failed)
                .writeAttribute("expectedFailures"_sr, testRunStats.totals.assertions.failedButOk);
        m_xml.scopedElement("OverallResultsCases")
                .writeAttribute("successes"_sr, testRunStats.totals.testCases.passed)
                .writeAttribute("failures"_sr, testRunStats.totals.testCases.failed)
                .writeAttribute("expectedFailures"_sr, testRunStats.totals.testCases.failedButOk);
        m_xml.endElement();
    }

    void XmlReporter::benchmarkPreparing(StringRef name) {
        m_xml.startElement("BenchmarkResults")
                .writeAttribute("name"_sr, name);
    }

    void XmlReporter::benchmarkStarting(BenchmarkInfo const &info) {
        m_xml.writeAttribute("samples"_sr, info.samples)
                .writeAttribute("resamples"_sr, info.resamples)
                .writeAttribute("iterations"_sr, info.iterations)
                .writeAttribute("clockResolution"_sr, info.clockResolution)
                .writeAttribute("estimatedDuration"_sr, info.estimatedDuration)
                .writeComment("All values in nano seconds"_sr);
    }

    void XmlReporter::benchmarkEnded(BenchmarkStats<> const &benchmarkStats) {
        m_xml.startElement("mean")
                .writeAttribute("value"_sr, benchmarkStats.mean.point.count())
                .writeAttribute("lowerBound"_sr, benchmarkStats.mean.lower_bound.count())
                .writeAttribute("upperBound"_sr, benchmarkStats.mean.upper_bound.count())
                .writeAttribute("ci"_sr, benchmarkStats.mean.confidence_interval);
        m_xml.endElement();
        m_xml.startElement("standardDeviation")
                .writeAttribute("value"_sr, benchmarkStats.standardDeviation.point.count())
                .writeAttribute("lowerBound"_sr, benchmarkStats.standardDeviation.lower_bound.count())
                .writeAttribute("upperBound"_sr, benchmarkStats.standardDeviation.upper_bound.count())
                .writeAttribute("ci"_sr, benchmarkStats.standardDeviation.confidence_interval);
        m_xml.endElement();
        m_xml.startElement("outliers")
                .writeAttribute("variance"_sr, benchmarkStats.outlierVariance)
                .writeAttribute("lowMild"_sr, benchmarkStats.outliers.low_mild)
                .writeAttribute("lowSevere"_sr, benchmarkStats.outliers.low_severe)
                .writeAttribute("highMild"_sr, benchmarkStats.outliers.high_mild)
                .writeAttribute("highSevere"_sr, benchmarkStats.outliers.high_severe);
        m_xml.endElement();
        m_xml.endElement();
    }

    void XmlReporter::benchmarkFailed(StringRef error) {
        m_xml.scopedElement("failed").
                writeAttribute("message"_sr, error);
        m_xml.endElement();
    }

    void XmlReporter::listReporters(std::vector<ReporterDescription> const &descriptions) {
        auto outerTag = m_xml.scopedElement("AvailableReporters");
        for (auto const &reporter: descriptions) {
            auto inner = m_xml.scopedElement("Reporter");
            m_xml.startElement("Name", XmlFormatting::Indent)
                    .writeText(reporter.name, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
            m_xml.startElement("Description", XmlFormatting::Indent)
                    .writeText(reporter.description, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
        }
    }

    void XmlReporter::listListeners(std::vector<ListenerDescription> const &descriptions) {
        auto outerTag = m_xml.scopedElement("RegisteredListeners");
        for (auto const &listener: descriptions) {
            auto inner = m_xml.scopedElement("Listener");
            m_xml.startElement("Name", XmlFormatting::Indent)
                    .writeText(listener.name, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
            m_xml.startElement("Description", XmlFormatting::Indent)
                    .writeText(listener.description, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
        }
    }

    void XmlReporter::listTests(std::vector<TestCaseHandle> const &tests) {
        auto outerTag = m_xml.scopedElement("MatchingTests");
        for (auto const &test: tests) {
            auto innerTag = m_xml.scopedElement("TestCase");
            auto const &testInfo = test.getTestCaseInfo();
            m_xml.startElement("Name", XmlFormatting::Indent)
                    .writeText(testInfo.name, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
            m_xml.startElement("ClassName", XmlFormatting::Indent)
                    .writeText(testInfo.className, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
            m_xml.startElement("Tags", XmlFormatting::Indent)
                    .writeText(testInfo.tagsAsString(), XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);

            auto sourceTag = m_xml.scopedElement("SourceInfo");
            m_xml.startElement("File", XmlFormatting::Indent)
                    .writeText(testInfo.lineInfo.file, XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
            m_xml.startElement("Line", XmlFormatting::Indent)
                    .writeText(std::to_string(testInfo.lineInfo.line), XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
        }
    }

    void XmlReporter::listTags(std::vector<TagInfo> const &tags) {
        auto outerTag = m_xml.scopedElement("TagsFromMatchingTests");
        for (auto const &tag: tags) {
            auto innerTag = m_xml.scopedElement("Tag");
            m_xml.startElement("Count", XmlFormatting::Indent)
                    .writeText(std::to_string(tag.count), XmlFormatting::None)
                    .endElement(XmlFormatting::Newline);
            auto aliasTag = m_xml.scopedElement("Aliases");
            for (auto const &alias: tag.spellings) {
                m_xml.startElement("Alias", XmlFormatting::Indent)
                        .writeText(alias, XmlFormatting::None)
                        .endElement(XmlFormatting::Newline);
            }
        }
    }

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
